Home / 54,479.54-75,189.12-30,612.08

Finding the Fourth Proportional to 54,479.54, 75,189.12 and 30,612.08

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Solution

The fourth proportional to 54,479.54, 75,189.12 and 30,612.08 is: 42,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,479.54 : 75,189.12 = 30,612.08 : x
  2. Step 2: Convert to fraction form
    54,479.54/75,189.12 = 30,612.08/x
  3. Step 3: Cross multiply
    54,479.54x = 75,189.12 × 30,612.08
  4. Step 4: Simplify right side
    54,479.54x = 2,301,695,356.57
  5. Step 5: Solve for x
    x = 2,301,695,356.57/54,479.54
  6. Step 6: Final answer
    x = 42,248.80

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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.