Home / 85,990.48-129,035.94-36,066.76

Finding the Fourth Proportional to 85,990.48, 129,035.94 and 36,066.76

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Solution

The fourth proportional to 85,990.48, 129,035.94 and 36,066.76 is: 54,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,990.48 : 129,035.94 = 36,066.76 : x
  2. Step 2: Convert to fraction form
    85,990.48/129,035.94 = 36,066.76/x
  3. Step 3: Cross multiply
    85,990.48x = 129,035.94 × 36,066.76
  4. Step 4: Simplify right side
    85,990.48x = 4,653,908,279.35
  5. Step 5: Solve for x
    x = 4,653,908,279.35/85,990.48
  6. Step 6: Final answer
    x = 54,121.20

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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.