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Finding the Fourth Proportional to 40,059.30, 60,124.61 and 21,354.78

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Solution

The fourth proportional to 40,059.30, 60,124.61 and 21,354.78 is: 32,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,059.30 : 60,124.61 = 21,354.78 : x
  2. Step 2: Convert to fraction form
    40,059.30/60,124.61 = 21,354.78/x
  3. Step 3: Cross multiply
    40,059.30x = 60,124.61 × 21,354.78
  4. Step 4: Simplify right side
    40,059.30x = 1,283,947,712.36
  5. Step 5: Solve for x
    x = 1,283,947,712.36/40,059.30
  6. Step 6: Final answer
    x = 32,051.18

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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.