Home / 76,646.20-105,770.98-42,654.11

Finding the Fourth Proportional to 76,646.20, 105,770.98 and 42,654.11

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Solution

The fourth proportional to 76,646.20, 105,770.98 and 42,654.11 is: 58,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,646.20 : 105,770.98 = 42,654.11 : x
  2. Step 2: Convert to fraction form
    76,646.20/105,770.98 = 42,654.11/x
  3. Step 3: Cross multiply
    76,646.20x = 105,770.98 × 42,654.11
  4. Step 4: Simplify right side
    76,646.20x = 4,511,566,380.24
  5. Step 5: Solve for x
    x = 4,511,566,380.24/76,646.20
  6. Step 6: Final answer
    x = 58,862.23

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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.