Home / 76,114.18-105,034.97-42,124.11

Finding the Fourth Proportional to 76,114.18, 105,034.97 and 42,124.11

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Solution

The fourth proportional to 76,114.18, 105,034.97 and 42,124.11 is: 58,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,114.18 : 105,034.97 = 42,124.11 : x
  2. Step 2: Convert to fraction form
    76,114.18/105,034.97 = 42,124.11/x
  3. Step 3: Cross multiply
    76,114.18x = 105,034.97 × 42,124.11
  4. Step 4: Simplify right side
    76,114.18x = 4,424,504,341.56
  5. Step 5: Solve for x
    x = 4,424,504,341.56/76,114.18
  6. Step 6: Final answer
    x = 58,129.83

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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.