Home / 54,901.12-75,685.98-38,979.76

Finding the Fourth Proportional to 54,901.12, 75,685.98 and 38,979.76

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Solution

The fourth proportional to 54,901.12, 75,685.98 and 38,979.76 is: 53,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,901.12 : 75,685.98 = 38,979.76 : x
  2. Step 2: Convert to fraction form
    54,901.12/75,685.98 = 38,979.76/x
  3. Step 3: Cross multiply
    54,901.12x = 75,685.98 × 38,979.76
  4. Step 4: Simplify right side
    54,901.12x = 2,950,221,335.76
  5. Step 5: Solve for x
    x = 2,950,221,335.76/54,901.12
  6. Step 6: Final answer
    x = 53,737.00

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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.