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Finding the Fourth Proportional to 63,948.60, 96,009.30 and 40,620.60

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Solution

The fourth proportional to 63,948.60, 96,009.30 and 40,620.60 is: 60,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,948.60 : 96,009.30 = 40,620.60 : x
  2. Step 2: Convert to fraction form
    63,948.60/96,009.30 = 40,620.60/x
  3. Step 3: Cross multiply
    63,948.60x = 96,009.30 × 40,620.60
  4. Step 4: Simplify right side
    63,948.60x = 3,899,955,371.58
  5. Step 5: Solve for x
    x = 3,899,955,371.58/63,948.60
  6. Step 6: Final answer
    x = 60,985.78

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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.