Home / 86,545.10-129,817.65-53,302.70

Finding the Fourth Proportional to 86,545.10, 129,817.65 and 53,302.70

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Solution

The fourth proportional to 86,545.10, 129,817.65 and 53,302.70 is: 79,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,545.10 : 129,817.65 = 53,302.70 : x
  2. Step 2: Convert to fraction form
    86,545.10/129,817.65 = 53,302.70/x
  3. Step 3: Cross multiply
    86,545.10x = 129,817.65 × 53,302.70
  4. Step 4: Simplify right side
    86,545.10x = 6,919,631,252.66
  5. Step 5: Solve for x
    x = 6,919,631,252.66/86,545.10
  6. Step 6: Final answer
    x = 79,954.05

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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.