Home / 51,495.20-77,109.60-43,155.20

Finding the Fourth Proportional to 51,495.20, 77,109.60 and 43,155.20

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Solution

The fourth proportional to 51,495.20, 77,109.60 and 43,155.20 is: 64,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,495.20 : 77,109.60 = 43,155.20 : x
  2. Step 2: Convert to fraction form
    51,495.20/77,109.60 = 43,155.20/x
  3. Step 3: Cross multiply
    51,495.20x = 77,109.60 × 43,155.20
  4. Step 4: Simplify right side
    51,495.20x = 3,327,680,209.92
  5. Step 5: Solve for x
    x = 3,327,680,209.92/51,495.20
  6. Step 6: Final answer
    x = 64,621.17

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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.