Home / 83,941.68-115,841.52-45,703.20

Finding the Fourth Proportional to 83,941.68, 115,841.52 and 45,703.20

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Solution

The fourth proportional to 83,941.68, 115,841.52 and 45,703.20 is: 63,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,941.68 : 115,841.52 = 45,703.20 : x
  2. Step 2: Convert to fraction form
    83,941.68/115,841.52 = 45,703.20/x
  3. Step 3: Cross multiply
    83,941.68x = 115,841.52 × 45,703.20
  4. Step 4: Simplify right side
    83,941.68x = 5,294,328,156.86
  5. Step 5: Solve for x
    x = 5,294,328,156.86/83,941.68
  6. Step 6: Final answer
    x = 63,071.51

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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.