Home / 54,587.80-75,332.63-30,715.32

Finding the Fourth Proportional to 54,587.80, 75,332.63 and 30,715.32

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Solution

The fourth proportional to 54,587.80, 75,332.63 and 30,715.32 is: 42,387.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,587.80 : 75,332.63 = 30,715.32 : x
  2. Step 2: Convert to fraction form
    54,587.80/75,332.63 = 30,715.32/x
  3. Step 3: Cross multiply
    54,587.80x = 75,332.63 × 30,715.32
  4. Step 4: Simplify right side
    54,587.80x = 2,313,865,913.68
  5. Step 5: Solve for x
    x = 2,313,865,913.68/54,587.80
  6. Step 6: Final answer
    x = 42,387.97

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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.