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Finding the Fourth Proportional to 60,239.89, 90,237.12 and 28,553.91

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Solution

The fourth proportional to 60,239.89, 90,237.12 and 28,553.91 is: 42,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,239.89 : 90,237.12 = 28,553.91 : x
  2. Step 2: Convert to fraction form
    60,239.89/90,237.12 = 28,553.91/x
  3. Step 3: Cross multiply
    60,239.89x = 90,237.12 × 28,553.91
  4. Step 4: Simplify right side
    60,239.89x = 2,576,622,603.14
  5. Step 5: Solve for x
    x = 2,576,622,603.14/60,239.89
  6. Step 6: Final answer
    x = 42,772.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.