Home / 53,340.73-73,612.31-30,679.69

Finding the Fourth Proportional to 53,340.73, 73,612.31 and 30,679.69

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Solution

The fourth proportional to 53,340.73, 73,612.31 and 30,679.69 is: 42,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,340.73 : 73,612.31 = 30,679.69 : x
  2. Step 2: Convert to fraction form
    53,340.73/73,612.31 = 30,679.69/x
  3. Step 3: Cross multiply
    53,340.73x = 73,612.31 × 30,679.69
  4. Step 4: Simplify right side
    53,340.73x = 2,258,402,743.65
  5. Step 5: Solve for x
    x = 2,258,402,743.65/53,340.73
  6. Step 6: Final answer
    x = 42,339.18

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.