Home / 63,981.60-95,972.40-19,615.20

Finding the Fourth Proportional to 63,981.60, 95,972.40 and 19,615.20

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Solution

The fourth proportional to 63,981.60, 95,972.40 and 19,615.20 is: 29,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,981.60 : 95,972.40 = 19,615.20 : x
  2. Step 2: Convert to fraction form
    63,981.60/95,972.40 = 19,615.20/x
  3. Step 3: Cross multiply
    63,981.60x = 95,972.40 × 19,615.20
  4. Step 4: Simplify right side
    63,981.60x = 1,882,517,820.48
  5. Step 5: Solve for x
    x = 1,882,517,820.48/63,981.60
  6. Step 6: Final answer
    x = 29,422.80

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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.