Home / 86,135.46-129,228.30-52,876.86

Finding the Fourth Proportional to 86,135.46, 129,228.30 and 52,876.86

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Solution

The fourth proportional to 86,135.46, 129,228.30 and 52,876.86 is: 79,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,135.46 : 129,228.30 = 52,876.86 : x
  2. Step 2: Convert to fraction form
    86,135.46/129,228.30 = 52,876.86/x
  3. Step 3: Cross multiply
    86,135.46x = 129,228.30 × 52,876.86
  4. Step 4: Simplify right side
    86,135.46x = 6,833,186,727.14
  5. Step 5: Solve for x
    x = 6,833,186,727.14/86,135.46
  6. Step 6: Final answer
    x = 79,330.70

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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.