Home / 57,272.90-85,909.35-54,211.10

Finding the Fourth Proportional to 57,272.90, 85,909.35 and 54,211.10

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Solution

The fourth proportional to 57,272.90, 85,909.35 and 54,211.10 is: 81,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.90 : 85,909.35 = 54,211.10 : x
  2. Step 2: Convert to fraction form
    57,272.90/85,909.35 = 54,211.10/x
  3. Step 3: Cross multiply
    57,272.90x = 85,909.35 × 54,211.10
  4. Step 4: Simplify right side
    57,272.90x = 4,657,240,363.79
  5. Step 5: Solve for x
    x = 4,657,240,363.79/57,272.90
  6. Step 6: Final answer
    x = 81,316.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.