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Finding the Fourth Proportional to 40,291.80, 60,437.70 and 39,708.60

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Solution

The fourth proportional to 40,291.80, 60,437.70 and 39,708.60 is: 59,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,291.80 : 60,437.70 = 39,708.60 : x
  2. Step 2: Convert to fraction form
    40,291.80/60,437.70 = 39,708.60/x
  3. Step 3: Cross multiply
    40,291.80x = 60,437.70 × 39,708.60
  4. Step 4: Simplify right side
    40,291.80x = 2,399,896,454.22
  5. Step 5: Solve for x
    x = 2,399,896,454.22/40,291.80
  6. Step 6: Final answer
    x = 59,562.90

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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.