Home / 83,841.40-125,762.10-72,436.60

Finding the Fourth Proportional to 83,841.40, 125,762.10 and 72,436.60

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Solution

The fourth proportional to 83,841.40, 125,762.10 and 72,436.60 is: 108,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,841.40 : 125,762.10 = 72,436.60 : x
  2. Step 2: Convert to fraction form
    83,841.40/125,762.10 = 72,436.60/x
  3. Step 3: Cross multiply
    83,841.40x = 125,762.10 × 72,436.60
  4. Step 4: Simplify right side
    83,841.40x = 9,109,778,932.86
  5. Step 5: Solve for x
    x = 9,109,778,932.86/83,841.40
  6. Step 6: Final answer
    x = 108,654.90

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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.