Home / 90,900.28-125,407.56-67,083.76

Finding the Fourth Proportional to 90,900.28, 125,407.56 and 67,083.76

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Solution

The fourth proportional to 90,900.28, 125,407.56 and 67,083.76 is: 92,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,900.28 : 125,407.56 = 67,083.76 : x
  2. Step 2: Convert to fraction form
    90,900.28/125,407.56 = 67,083.76/x
  3. Step 3: Cross multiply
    90,900.28x = 125,407.56 × 67,083.76
  4. Step 4: Simplify right side
    90,900.28x = 8,412,810,657.23
  5. Step 5: Solve for x
    x = 8,412,810,657.23/90,900.28
  6. Step 6: Final answer
    x = 92,549.89

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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.