Home / 86,287.02-129,376.92-36,341.40

Finding the Fourth Proportional to 86,287.02, 129,376.92 and 36,341.40

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Solution

The fourth proportional to 86,287.02, 129,376.92 and 36,341.40 is: 54,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287.02 : 129,376.92 = 36,341.40 : x
  2. Step 2: Convert to fraction form
    86,287.02/129,376.92 = 36,341.40/x
  3. Step 3: Cross multiply
    86,287.02x = 129,376.92 × 36,341.40
  4. Step 4: Simplify right side
    86,287.02x = 4,701,738,400.49
  5. Step 5: Solve for x
    x = 4,701,738,400.49/86,287.02
  6. Step 6: Final answer
    x = 54,489.52

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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.