Home / 90,431.95-124,770.63-71,252.26

Finding the Fourth Proportional to 90,431.95, 124,770.63 and 71,252.26

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Solution

The fourth proportional to 90,431.95, 124,770.63 and 71,252.26 is: 98,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,431.95 : 124,770.63 = 71,252.26 : x
  2. Step 2: Convert to fraction form
    90,431.95/124,770.63 = 71,252.26/x
  3. Step 3: Cross multiply
    90,431.95x = 124,770.63 × 71,252.26
  4. Step 4: Simplify right side
    90,431.95x = 8,890,189,369.12
  5. Step 5: Solve for x
    x = 8,890,189,369.12/90,431.95
  6. Step 6: Final answer
    x = 98,308.06

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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.