Home / 86,384.66-129,284.40-53,125.82

Finding the Fourth Proportional to 86,384.66, 129,284.40 and 53,125.82

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Solution

The fourth proportional to 86,384.66, 129,284.40 and 53,125.82 is: 79,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,384.66 : 129,284.40 = 53,125.82 : x
  2. Step 2: Convert to fraction form
    86,384.66/129,284.40 = 53,125.82/x
  3. Step 3: Cross multiply
    86,384.66x = 129,284.40 × 53,125.82
  4. Step 4: Simplify right side
    86,384.66x = 6,868,339,763.21
  5. Step 5: Solve for x
    x = 6,868,339,763.21/86,384.66
  6. Step 6: Final answer
    x = 79,508.79

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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.