Home / 77,374.20-116,061.28-51,072.78

Finding the Fourth Proportional to 77,374.20, 116,061.28 and 51,072.78

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Solution

The fourth proportional to 77,374.20, 116,061.28 and 51,072.78 is: 76,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,374.20 : 116,061.28 = 51,072.78 : x
  2. Step 2: Convert to fraction form
    77,374.20/116,061.28 = 51,072.78/x
  3. Step 3: Cross multiply
    77,374.20x = 116,061.28 × 51,072.78
  4. Step 4: Simplify right side
    77,374.20x = 5,927,572,219.96
  5. Step 5: Solve for x
    x = 5,927,572,219.96/77,374.20
  6. Step 6: Final answer
    x = 76,609.16

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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.