Home / 90,490.38-124,876.82-52,771.92

Finding the Fourth Proportional to 90,490.38, 124,876.82 and 52,771.92

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Solution

The fourth proportional to 90,490.38, 124,876.82 and 52,771.92 is: 72,825.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,490.38 : 124,876.82 = 52,771.92 : x
  2. Step 2: Convert to fraction form
    90,490.38/124,876.82 = 52,771.92/x
  3. Step 3: Cross multiply
    90,490.38x = 124,876.82 × 52,771.92
  4. Step 4: Simplify right side
    90,490.38x = 6,589,989,554.89
  5. Step 5: Solve for x
    x = 6,589,989,554.89/90,490.38
  6. Step 6: Final answer
    x = 72,825.31

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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.