Home / 53,654.28-80,419.50-39,402.60

Finding the Fourth Proportional to 53,654.28, 80,419.50 and 39,402.60

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Solution

The fourth proportional to 53,654.28, 80,419.50 and 39,402.60 is: 59,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,654.28 : 80,419.50 = 39,402.60 : x
  2. Step 2: Convert to fraction form
    53,654.28/80,419.50 = 39,402.60/x
  3. Step 3: Cross multiply
    53,654.28x = 80,419.50 × 39,402.60
  4. Step 4: Simplify right side
    53,654.28x = 3,168,737,390.70
  5. Step 5: Solve for x
    x = 3,168,737,390.70/53,654.28
  6. Step 6: Final answer
    x = 59,058.43

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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.