Home / 86,287.52-129,377.67-36,341.90

Finding the Fourth Proportional to 86,287.52, 129,377.67 and 36,341.90

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Solution

The fourth proportional to 86,287.52, 129,377.67 and 36,341.90 is: 54,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287.52 : 129,377.67 = 36,341.90 : x
  2. Step 2: Convert to fraction form
    86,287.52/129,377.67 = 36,341.90/x
  3. Step 3: Cross multiply
    86,287.52x = 129,377.67 × 36,341.90
  4. Step 4: Simplify right side
    86,287.52x = 4,701,830,345.37
  5. Step 5: Solve for x
    x = 4,701,830,345.37/86,287.52
  6. Step 6: Final answer
    x = 54,490.27

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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.