Home / 85,542.62-128,331-26,376.03

Finding the Fourth Proportional to 85,542.62, 128,331 and 26,376.03

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Solution

The fourth proportional to 85,542.62, 128,331 and 26,376.03 is: 39,569.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542.62 : 128,331 = 26,376.03 : x
  2. Step 2: Convert to fraction form
    85,542.62/128,331 = 26,376.03/x
  3. Step 3: Cross multiply
    85,542.62x = 128,331 × 26,376.03
  4. Step 4: Simplify right side
    85,542.62x = 3,384,862,305.93
  5. Step 5: Solve for x
    x = 3,384,862,305.93/85,542.62
  6. Step 6: Final answer
    x = 39,569.31

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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.