Home / 86,658.12-129,995.69-36,046.71

Finding the Fourth Proportional to 86,658.12, 129,995.69 and 36,046.71

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Solution

The fourth proportional to 86,658.12, 129,995.69 and 36,046.71 is: 54,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658.12 : 129,995.69 = 36,046.71 : x
  2. Step 2: Convert to fraction form
    86,658.12/129,995.69 = 36,046.71/x
  3. Step 3: Cross multiply
    86,658.12x = 129,995.69 × 36,046.71
  4. Step 4: Simplify right side
    86,658.12x = 4,685,916,758.45
  5. Step 5: Solve for x
    x = 4,685,916,758.45/86,658.12
  6. Step 6: Final answer
    x = 54,073.60

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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.