Home / 77,619.46-116,254.14-54,349.78

Finding the Fourth Proportional to 77,619.46, 116,254.14 and 54,349.78

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Solution

The fourth proportional to 77,619.46, 116,254.14 and 54,349.78 is: 81,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,619.46 : 116,254.14 = 54,349.78 : x
  2. Step 2: Convert to fraction form
    77,619.46/116,254.14 = 54,349.78/x
  3. Step 3: Cross multiply
    77,619.46x = 116,254.14 × 54,349.78
  4. Step 4: Simplify right side
    77,619.46x = 6,318,386,933.09
  5. Step 5: Solve for x
    x = 6,318,386,933.09/77,619.46
  6. Step 6: Final answer
    x = 81,402.10

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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.