Home / 83,571.90-125,358.12-21,242.40

Finding the Fourth Proportional to 83,571.90, 125,358.12 and 21,242.40

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Solution

The fourth proportional to 83,571.90, 125,358.12 and 21,242.40 is: 31,863.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,571.90 : 125,358.12 = 21,242.40 : x
  2. Step 2: Convert to fraction form
    83,571.90/125,358.12 = 21,242.40/x
  3. Step 3: Cross multiply
    83,571.90x = 125,358.12 × 21,242.40
  4. Step 4: Simplify right side
    83,571.90x = 2,662,906,595.29
  5. Step 5: Solve for x
    x = 2,662,906,595.29/83,571.90
  6. Step 6: Final answer
    x = 31,863.66

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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.