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Finding the Fourth Proportional to 83,483.88, 115,208.12 and 45,758.76

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Solution

The fourth proportional to 83,483.88, 115,208.12 and 45,758.76 is: 63,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,483.88 : 115,208.12 = 45,758.76 : x
  2. Step 2: Convert to fraction form
    83,483.88/115,208.12 = 45,758.76/x
  3. Step 3: Cross multiply
    83,483.88x = 115,208.12 × 45,758.76
  4. Step 4: Simplify right side
    83,483.88x = 5,271,780,713.13
  5. Step 5: Solve for x
    x = 5,271,780,713.13/83,483.88
  6. Step 6: Final answer
    x = 63,147.29

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1.5x scale

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.