Home / 85,499.20-128,248.83-22,319.14

Finding the Fourth Proportional to 85,499.20, 128,248.83 and 22,319.14

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Solution

The fourth proportional to 85,499.20, 128,248.83 and 22,319.14 is: 33,478.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,499.20 : 128,248.83 = 22,319.14 : x
  2. Step 2: Convert to fraction form
    85,499.20/128,248.83 = 22,319.14/x
  3. Step 3: Cross multiply
    85,499.20x = 128,248.83 × 22,319.14
  4. Step 4: Simplify right side
    85,499.20x = 2,862,403,480.01
  5. Step 5: Solve for x
    x = 2,862,403,480.01/85,499.20
  6. Step 6: Final answer
    x = 33,478.72

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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.