Home / 54,403.08-75,079.56-30,531.28

Finding the Fourth Proportional to 54,403.08, 75,079.56 and 30,531.28

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Solution

The fourth proportional to 54,403.08, 75,079.56 and 30,531.28 is: 42,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,403.08 : 75,079.56 = 30,531.28 : x
  2. Step 2: Convert to fraction form
    54,403.08/75,079.56 = 30,531.28/x
  3. Step 3: Cross multiply
    54,403.08x = 75,079.56 × 30,531.28
  4. Step 4: Simplify right side
    54,403.08x = 2,292,275,068.64
  5. Step 5: Solve for x
    x = 2,292,275,068.64/54,403.08
  6. Step 6: Final answer
    x = 42,135.02

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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.