Home / 85,061.75-127,581.38-28,899.59

Finding the Fourth Proportional to 85,061.75, 127,581.38 and 28,899.59

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Solution

The fourth proportional to 85,061.75, 127,581.38 and 28,899.59 is: 43,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,061.75 : 127,581.38 = 28,899.59 : x
  2. Step 2: Convert to fraction form
    85,061.75/127,581.38 = 28,899.59/x
  3. Step 3: Cross multiply
    85,061.75x = 127,581.38 × 28,899.59
  4. Step 4: Simplify right side
    85,061.75x = 3,687,048,899.60
  5. Step 5: Solve for x
    x = 3,687,048,899.60/85,061.75
  6. Step 6: Final answer
    x = 43,345.56

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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.