Home / 85,539.20-128,219.76-32,194.53

Finding the Fourth Proportional to 85,539.20, 128,219.76 and 32,194.53

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Solution

The fourth proportional to 85,539.20, 128,219.76 and 32,194.53 is: 48,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,539.20 : 128,219.76 = 32,194.53 : x
  2. Step 2: Convert to fraction form
    85,539.20/128,219.76 = 32,194.53/x
  3. Step 3: Cross multiply
    85,539.20x = 128,219.76 × 32,194.53
  4. Step 4: Simplify right side
    85,539.20x = 4,127,974,909.91
  5. Step 5: Solve for x
    x = 4,127,974,909.91/85,539.20
  6. Step 6: Final answer
    x = 48,258.29

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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.