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Finding the Fourth Proportional to 64,145.70, 95,959.35 and 55,476.90

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Solution

The fourth proportional to 64,145.70, 95,959.35 and 55,476.90 is: 82,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.70 : 95,959.35 = 55,476.90 : x
  2. Step 2: Convert to fraction form
    64,145.70/95,959.35 = 55,476.90/x
  3. Step 3: Cross multiply
    64,145.70x = 95,959.35 × 55,476.90
  4. Step 4: Simplify right side
    64,145.70x = 5,323,527,264.02
  5. Step 5: Solve for x
    x = 5,323,527,264.02/64,145.70
  6. Step 6: Final answer
    x = 82,991.18

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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.