Home / 76,531.18-114,808.60-39,070.92

Finding the Fourth Proportional to 76,531.18, 114,808.60 and 39,070.92

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Solution

The fourth proportional to 76,531.18, 114,808.60 and 39,070.92 is: 58,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,531.18 : 114,808.60 = 39,070.92 : x
  2. Step 2: Convert to fraction form
    76,531.18/114,808.60 = 39,070.92/x
  3. Step 3: Cross multiply
    76,531.18x = 114,808.60 × 39,070.92
  4. Step 4: Simplify right side
    76,531.18x = 4,485,677,625.91
  5. Step 5: Solve for x
    x = 4,485,677,625.91/76,531.18
  6. Step 6: Final answer
    x = 58,612.42

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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.