Home / 77,677.76-116,265.98-40,186.20

Finding the Fourth Proportional to 77,677.76, 116,265.98 and 40,186.20

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Solution

The fourth proportional to 77,677.76, 116,265.98 and 40,186.20 is: 60,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,677.76 : 116,265.98 = 40,186.20 : x
  2. Step 2: Convert to fraction form
    77,677.76/116,265.98 = 40,186.20/x
  3. Step 3: Cross multiply
    77,677.76x = 116,265.98 × 40,186.20
  4. Step 4: Simplify right side
    77,677.76x = 4,672,287,925.48
  5. Step 5: Solve for x
    x = 4,672,287,925.48/77,677.76
  6. Step 6: Final answer
    x = 60,149.62

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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.