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Finding the Fourth Proportional to 71,254.88, 106,830.48 and 43,572.32

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Solution

The fourth proportional to 71,254.88, 106,830.48 and 43,572.32 is: 65,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,254.88 : 106,830.48 = 43,572.32 : x
  2. Step 2: Convert to fraction form
    71,254.88/106,830.48 = 43,572.32/x
  3. Step 3: Cross multiply
    71,254.88x = 106,830.48 × 43,572.32
  4. Step 4: Simplify right side
    71,254.88x = 4,654,851,860.31
  5. Step 5: Solve for x
    x = 4,654,851,860.31/71,254.88
  6. Step 6: Final answer
    x = 65,326.78

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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.