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Finding the Fourth Proportional to 60,490.97, 90,150.40 and 57,341.69

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Solution

The fourth proportional to 60,490.97, 90,150.40 and 57,341.69 is: 85,456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490.97 : 90,150.40 = 57,341.69 : x
  2. Step 2: Convert to fraction form
    60,490.97/90,150.40 = 57,341.69/x
  3. Step 3: Cross multiply
    60,490.97x = 90,150.40 × 57,341.69
  4. Step 4: Simplify right side
    60,490.97x = 5,169,376,249.17
  5. Step 5: Solve for x
    x = 5,169,376,249.17/60,490.97
  6. Step 6: Final answer
    x = 85,456.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.