Home / 90,685.31-125,144.15-50,398.02

Finding the Fourth Proportional to 90,685.31, 125,144.15 and 50,398.02

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Solution

The fourth proportional to 90,685.31, 125,144.15 and 50,398.02 is: 69,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,685.31 : 125,144.15 = 50,398.02 : x
  2. Step 2: Convert to fraction form
    90,685.31/125,144.15 = 50,398.02/x
  3. Step 3: Cross multiply
    90,685.31x = 125,144.15 × 50,398.02
  4. Step 4: Simplify right side
    90,685.31x = 6,307,017,122.59
  5. Step 5: Solve for x
    x = 6,307,017,122.59/90,685.31
  6. Step 6: Final answer
    x = 69,548.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.