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Finding the Fourth Proportional to 90,182.70, 124,375.77 and 54,364.86

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Solution

The fourth proportional to 90,182.70, 124,375.77 and 54,364.86 is: 74,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,182.70 : 124,375.77 = 54,364.86 : x
  2. Step 2: Convert to fraction form
    90,182.70/124,375.77 = 54,364.86/x
  3. Step 3: Cross multiply
    90,182.70x = 124,375.77 × 54,364.86
  4. Step 4: Simplify right side
    90,182.70x = 6,761,671,323.44
  5. Step 5: Solve for x
    x = 6,761,671,323.44/90,182.70
  6. Step 6: Final answer
    x = 74,977.48

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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.