Home / 83,877.96-125,635.50-39,438.12

Finding the Fourth Proportional to 83,877.96, 125,635.50 and 39,438.12

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Solution

The fourth proportional to 83,877.96, 125,635.50 and 39,438.12 is: 59,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,877.96 : 125,635.50 = 39,438.12 : x
  2. Step 2: Convert to fraction form
    83,877.96/125,635.50 = 39,438.12/x
  3. Step 3: Cross multiply
    83,877.96x = 125,635.50 × 39,438.12
  4. Step 4: Simplify right side
    83,877.96x = 4,954,827,925.26
  5. Step 5: Solve for x
    x = 4,954,827,925.26/83,877.96
  6. Step 6: Final answer
    x = 59,071.87

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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.