Home / 72,020.25-99,381.47-45,154.17

Finding the Fourth Proportional to 72,020.25, 99,381.47 and 45,154.17

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Solution

The fourth proportional to 72,020.25, 99,381.47 and 45,154.17 is: 62,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,020.25 : 99,381.47 = 45,154.17 : x
  2. Step 2: Convert to fraction form
    72,020.25/99,381.47 = 45,154.17/x
  3. Step 3: Cross multiply
    72,020.25x = 99,381.47 × 45,154.17
  4. Step 4: Simplify right side
    72,020.25x = 4,487,487,565.46
  5. Step 5: Solve for x
    x = 4,487,487,565.46/72,020.25
  6. Step 6: Final answer
    x = 62,308.69

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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.