Home / 83,868.32-125,802.48-21,538.88

Finding the Fourth Proportional to 83,868.32, 125,802.48 and 21,538.88

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Solution

The fourth proportional to 83,868.32, 125,802.48 and 21,538.88 is: 32,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,868.32 : 125,802.48 = 21,538.88 : x
  2. Step 2: Convert to fraction form
    83,868.32/125,802.48 = 21,538.88/x
  3. Step 3: Cross multiply
    83,868.32x = 125,802.48 × 21,538.88
  4. Step 4: Simplify right side
    83,868.32x = 2,709,644,520.42
  5. Step 5: Solve for x
    x = 2,709,644,520.42/83,868.32
  6. Step 6: Final answer
    x = 32,308.32

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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.