Home / 53,934.05-74,436.17-30,972.98

Finding the Fourth Proportional to 53,934.05, 74,436.17 and 30,972.98

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Solution

The fourth proportional to 53,934.05, 74,436.17 and 30,972.98 is: 42,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,934.05 : 74,436.17 = 30,972.98 : x
  2. Step 2: Convert to fraction form
    53,934.05/74,436.17 = 30,972.98/x
  3. Step 3: Cross multiply
    53,934.05x = 74,436.17 × 30,972.98
  4. Step 4: Simplify right side
    53,934.05x = 2,305,510,035.91
  5. Step 5: Solve for x
    x = 2,305,510,035.91/53,934.05
  6. Step 6: Final answer
    x = 42,746.83

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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.