Home / 83,438.10-115,143.12-51,598.62

Finding the Fourth Proportional to 83,438.10, 115,143.12 and 51,598.62

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Solution

The fourth proportional to 83,438.10, 115,143.12 and 51,598.62 is: 71,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.10 : 115,143.12 = 51,598.62 : x
  2. Step 2: Convert to fraction form
    83,438.10/115,143.12 = 51,598.62/x
  3. Step 3: Cross multiply
    83,438.10x = 115,143.12 × 51,598.62
  4. Step 4: Simplify right side
    83,438.10x = 5,941,226,094.49
  5. Step 5: Solve for x
    x = 5,941,226,094.49/83,438.10
  6. Step 6: Final answer
    x = 71,205.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.