Home / 83,665.12-125,513.08-27,508.40

Finding the Fourth Proportional to 83,665.12, 125,513.08 and 27,508.40

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Solution

The fourth proportional to 83,665.12, 125,513.08 and 27,508.40 is: 41,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,665.12 : 125,513.08 = 27,508.40 : x
  2. Step 2: Convert to fraction form
    83,665.12/125,513.08 = 27,508.40/x
  3. Step 3: Cross multiply
    83,665.12x = 125,513.08 × 27,508.40
  4. Step 4: Simplify right side
    83,665.12x = 3,452,664,009.87
  5. Step 5: Solve for x
    x = 3,452,664,009.87/83,665.12
  6. Step 6: Final answer
    x = 41,267.66

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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.