Home / 79,381.12-119,071.68-61,864.12

Finding the Fourth Proportional to 79,381.12, 119,071.68 and 61,864.12

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Solution

The fourth proportional to 79,381.12, 119,071.68 and 61,864.12 is: 92,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,381.12 : 119,071.68 = 61,864.12 : x
  2. Step 2: Convert to fraction form
    79,381.12/119,071.68 = 61,864.12/x
  3. Step 3: Cross multiply
    79,381.12x = 119,071.68 × 61,864.12
  4. Step 4: Simplify right side
    79,381.12x = 7,366,264,700.12
  5. Step 5: Solve for x
    x = 7,366,264,700.12/79,381.12
  6. Step 6: Final answer
    x = 92,796.18

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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.