Home / 53,078.15-73,248.40-30,416.65

Finding the Fourth Proportional to 53,078.15, 73,248.40 and 30,416.65

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Solution

The fourth proportional to 53,078.15, 73,248.40 and 30,416.65 is: 41,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.15 : 73,248.40 = 30,416.65 : x
  2. Step 2: Convert to fraction form
    53,078.15/73,248.40 = 30,416.65/x
  3. Step 3: Cross multiply
    53,078.15x = 73,248.40 × 30,416.65
  4. Step 4: Simplify right side
    53,078.15x = 2,227,970,800.76
  5. Step 5: Solve for x
    x = 2,227,970,800.76/53,078.15
  6. Step 6: Final answer
    x = 41,975.29

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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.