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Finding the Fourth Proportional to 90,360.84, 124,701.17 and 54,543.85

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Solution

The fourth proportional to 90,360.84, 124,701.17 and 54,543.85 is: 75,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,360.84 : 124,701.17 = 54,543.85 : x
  2. Step 2: Convert to fraction form
    90,360.84/124,701.17 = 54,543.85/x
  3. Step 3: Cross multiply
    90,360.84x = 124,701.17 × 54,543.85
  4. Step 4: Simplify right side
    90,360.84x = 6,801,682,047.66
  5. Step 5: Solve for x
    x = 6,801,682,047.66/90,360.84
  6. Step 6: Final answer
    x = 75,272.46

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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.