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Finding the Fourth Proportional to 76,207.70, 114,311.55 and 65,710.10

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Solution

The fourth proportional to 76,207.70, 114,311.55 and 65,710.10 is: 98,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,207.70 : 114,311.55 = 65,710.10 : x
  2. Step 2: Convert to fraction form
    76,207.70/114,311.55 = 65,710.10/x
  3. Step 3: Cross multiply
    76,207.70x = 114,311.55 × 65,710.10
  4. Step 4: Simplify right side
    76,207.70x = 7,511,423,381.66
  5. Step 5: Solve for x
    x = 7,511,423,381.66/76,207.70
  6. Step 6: Final answer
    x = 98,565.15

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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.