Home / 90,188.40-124,449.10-51,960.45

Finding the Fourth Proportional to 90,188.40, 124,449.10 and 51,960.45

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Solution

The fourth proportional to 90,188.40, 124,449.10 and 51,960.45 is: 71,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,188.40 : 124,449.10 = 51,960.45 : x
  2. Step 2: Convert to fraction form
    90,188.40/124,449.10 = 51,960.45/x
  3. Step 3: Cross multiply
    90,188.40x = 124,449.10 × 51,960.45
  4. Step 4: Simplify right side
    90,188.40x = 6,466,431,238.10
  5. Step 5: Solve for x
    x = 6,466,431,238.10/90,188.40
  6. Step 6: Final answer
    x = 71,699.15

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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.