Home / 78,346.18-108,120.78-44,356.12

Finding the Fourth Proportional to 78,346.18, 108,120.78 and 44,356.12

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Solution

The fourth proportional to 78,346.18, 108,120.78 and 44,356.12 is: 61,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,346.18 : 108,120.78 = 44,356.12 : x
  2. Step 2: Convert to fraction form
    78,346.18/108,120.78 = 44,356.12/x
  3. Step 3: Cross multiply
    78,346.18x = 108,120.78 × 44,356.12
  4. Step 4: Simplify right side
    78,346.18x = 4,795,818,292.17
  5. Step 5: Solve for x
    x = 4,795,818,292.17/78,346.18
  6. Step 6: Final answer
    x = 61,213.17

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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.