Home / 77,132.49-115,511.95-53,373.43

Finding the Fourth Proportional to 77,132.49, 115,511.95 and 53,373.43

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Solution

The fourth proportional to 77,132.49, 115,511.95 and 53,373.43 is: 79,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,132.49 : 115,511.95 = 53,373.43 : x
  2. Step 2: Convert to fraction form
    77,132.49/115,511.95 = 53,373.43/x
  3. Step 3: Cross multiply
    77,132.49x = 115,511.95 × 53,373.43
  4. Step 4: Simplify right side
    77,132.49x = 6,165,268,977.49
  5. Step 5: Solve for x
    x = 6,165,268,977.49/77,132.49
  6. Step 6: Final answer
    x = 79,930.90

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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.