Home / 78,155.76-107,848.38-44,167.20

Finding the Fourth Proportional to 78,155.76, 107,848.38 and 44,167.20

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Solution

The fourth proportional to 78,155.76, 107,848.38 and 44,167.20 is: 60,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,155.76 : 107,848.38 = 44,167.20 : x
  2. Step 2: Convert to fraction form
    78,155.76/107,848.38 = 44,167.20/x
  3. Step 3: Cross multiply
    78,155.76x = 107,848.38 × 44,167.20
  4. Step 4: Simplify right side
    78,155.76x = 4,763,360,969.14
  5. Step 5: Solve for x
    x = 4,763,360,969.14/78,155.76
  6. Step 6: Final answer
    x = 60,947.02

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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.