Home / 42,659.40-63,989.10-39,030.60

Finding the Fourth Proportional to 42,659.40, 63,989.10 and 39,030.60

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Solution

The fourth proportional to 42,659.40, 63,989.10 and 39,030.60 is: 58,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,659.40 : 63,989.10 = 39,030.60 : x
  2. Step 2: Convert to fraction form
    42,659.40/63,989.10 = 39,030.60/x
  3. Step 3: Cross multiply
    42,659.40x = 63,989.10 × 39,030.60
  4. Step 4: Simplify right side
    42,659.40x = 2,497,532,966.46
  5. Step 5: Solve for x
    x = 2,497,532,966.46/42,659.40
  6. Step 6: Final answer
    x = 58,545.90

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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.