Home / 90,341.68-124,676.16-54,531.20

Finding the Fourth Proportional to 90,341.68, 124,676.16 and 54,531.20

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Solution

The fourth proportional to 90,341.68, 124,676.16 and 54,531.20 is: 75,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,341.68 : 124,676.16 = 54,531.20 : x
  2. Step 2: Convert to fraction form
    90,341.68/124,676.16 = 54,531.20/x
  3. Step 3: Cross multiply
    90,341.68x = 124,676.16 × 54,531.20
  4. Step 4: Simplify right side
    90,341.68x = 6,798,740,616.19
  5. Step 5: Solve for x
    x = 6,798,740,616.19/90,341.68
  6. Step 6: Final answer
    x = 75,255.86

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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.