Home / 86,461.90-129,706.26-36,542.21

Finding the Fourth Proportional to 86,461.90, 129,706.26 and 36,542.21

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Solution

The fourth proportional to 86,461.90, 129,706.26 and 36,542.21 is: 54,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,461.90 : 129,706.26 = 36,542.21 : x
  2. Step 2: Convert to fraction form
    86,461.90/129,706.26 = 36,542.21/x
  3. Step 3: Cross multiply
    86,461.90x = 129,706.26 × 36,542.21
  4. Step 4: Simplify right side
    86,461.90x = 4,739,752,605.67
  5. Step 5: Solve for x
    x = 4,739,752,605.67/86,461.90
  6. Step 6: Final answer
    x = 54,818.98

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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.