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Finding the Fourth Proportional to 86,068.89, 129,153.22 and 36,144.68

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Solution

The fourth proportional to 86,068.89, 129,153.22 and 36,144.68 is: 54,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,068.89 : 129,153.22 = 36,144.68 : x
  2. Step 2: Convert to fraction form
    86,068.89/129,153.22 = 36,144.68/x
  3. Step 3: Cross multiply
    86,068.89x = 129,153.22 × 36,144.68
  4. Step 4: Simplify right side
    86,068.89x = 4,668,201,071.74
  5. Step 5: Solve for x
    x = 4,668,201,071.74/86,068.89
  6. Step 6: Final answer
    x = 54,237.96

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1.5x scale

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.