Home / 42,002.60-62,939.10-36,429.80

Finding the Fourth Proportional to 42,002.60, 62,939.10 and 36,429.80

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Solution

The fourth proportional to 42,002.60, 62,939.10 and 36,429.80 is: 54,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.60 : 62,939.10 = 36,429.80 : x
  2. Step 2: Convert to fraction form
    42,002.60/62,939.10 = 36,429.80/x
  3. Step 3: Cross multiply
    42,002.60x = 62,939.10 × 36,429.80
  4. Step 4: Simplify right side
    42,002.60x = 2,292,858,825.18
  5. Step 5: Solve for x
    x = 2,292,858,825.18/42,002.60
  6. Step 6: Final answer
    x = 54,588.50

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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.