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Finding the Fourth Proportional to 86,510.62, 119,207.46 and 63,813.64

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Solution

The fourth proportional to 86,510.62, 119,207.46 and 63,813.64 is: 87,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,510.62 : 119,207.46 = 63,813.64 : x
  2. Step 2: Convert to fraction form
    86,510.62/119,207.46 = 63,813.64/x
  3. Step 3: Cross multiply
    86,510.62x = 119,207.46 × 63,813.64
  4. Step 4: Simplify right side
    86,510.62x = 7,607,061,937.75
  5. Step 5: Solve for x
    x = 7,607,061,937.75/86,510.62
  6. Step 6: Final answer
    x = 87,932.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.