Home / 90,436.68-124,777.15-71,257.01

Finding the Fourth Proportional to 90,436.68, 124,777.15 and 71,257.01

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Solution

The fourth proportional to 90,436.68, 124,777.15 and 71,257.01 is: 98,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,436.68 : 124,777.15 = 71,257.01 : x
  2. Step 2: Convert to fraction form
    90,436.68/124,777.15 = 71,257.01/x
  3. Step 3: Cross multiply
    90,436.68x = 124,777.15 × 71,257.01
  4. Step 4: Simplify right side
    90,436.68x = 8,891,245,823.29
  5. Step 5: Solve for x
    x = 8,891,245,823.29/90,436.68
  6. Step 6: Final answer
    x = 98,314.60

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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.