Home / 90,442.27-124,666.53-71,290.99

Finding the Fourth Proportional to 90,442.27, 124,666.53 and 71,290.99

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Solution

The fourth proportional to 90,442.27, 124,666.53 and 71,290.99 is: 98,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,442.27 : 124,666.53 = 71,290.99 : x
  2. Step 2: Convert to fraction form
    90,442.27/124,666.53 = 71,290.99/x
  3. Step 3: Cross multiply
    90,442.27x = 124,666.53 × 71,290.99
  4. Step 4: Simplify right side
    90,442.27x = 8,887,600,343.56
  5. Step 5: Solve for x
    x = 8,887,600,343.56/90,442.27
  6. Step 6: Final answer
    x = 98,268.21

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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.