Home / 83,631.60-125,448.12-21,302.04

Finding the Fourth Proportional to 83,631.60, 125,448.12 and 21,302.04

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Solution

The fourth proportional to 83,631.60, 125,448.12 and 21,302.04 is: 31,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,631.60 : 125,448.12 = 21,302.04 : x
  2. Step 2: Convert to fraction form
    83,631.60/125,448.12 = 21,302.04/x
  3. Step 3: Cross multiply
    83,631.60x = 125,448.12 × 21,302.04
  4. Step 4: Simplify right side
    83,631.60x = 2,672,300,870.16
  5. Step 5: Solve for x
    x = 2,672,300,870.16/83,631.60
  6. Step 6: Final answer
    x = 31,953.24

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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.