Home / 90,261.77-124,522.02-54,431.87

Finding the Fourth Proportional to 90,261.77, 124,522.02 and 54,431.87

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Solution

The fourth proportional to 90,261.77, 124,522.02 and 54,431.87 is: 75,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,261.77 : 124,522.02 = 54,431.87 : x
  2. Step 2: Convert to fraction form
    90,261.77/124,522.02 = 54,431.87/x
  3. Step 3: Cross multiply
    90,261.77x = 124,522.02 × 54,431.87
  4. Step 4: Simplify right side
    90,261.77x = 6,777,965,782.17
  5. Step 5: Solve for x
    x = 6,777,965,782.17/90,261.77
  6. Step 6: Final answer
    x = 75,092.32

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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.