Home / 42,000.60-62,903.70-28,781.40

Finding the Fourth Proportional to 42,000.60, 62,903.70 and 28,781.40

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Solution

The fourth proportional to 42,000.60, 62,903.70 and 28,781.40 is: 43,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,000.60 : 62,903.70 = 28,781.40 : x
  2. Step 2: Convert to fraction form
    42,000.60/62,903.70 = 28,781.40/x
  3. Step 3: Cross multiply
    42,000.60x = 62,903.70 × 28,781.40
  4. Step 4: Simplify right side
    42,000.60x = 1,810,456,551.18
  5. Step 5: Solve for x
    x = 1,810,456,551.18/42,000.60
  6. Step 6: Final answer
    x = 43,105.49

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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.