Home / 77,070.12-115,610.85-32,691.84

Finding the Fourth Proportional to 77,070.12, 115,610.85 and 32,691.84

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Solution

The fourth proportional to 77,070.12, 115,610.85 and 32,691.84 is: 49,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,070.12 : 115,610.85 = 32,691.84 : x
  2. Step 2: Convert to fraction form
    77,070.12/115,610.85 = 32,691.84/x
  3. Step 3: Cross multiply
    77,070.12x = 115,610.85 × 32,691.84
  4. Step 4: Simplify right side
    77,070.12x = 3,779,531,410.46
  5. Step 5: Solve for x
    x = 3,779,531,410.46/77,070.12
  6. Step 6: Final answer
    x = 49,040.17

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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.