Home / 79,113.87-109,178.17-43,303.11

Finding the Fourth Proportional to 79,113.87, 109,178.17 and 43,303.11

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Solution

The fourth proportional to 79,113.87, 109,178.17 and 43,303.11 is: 59,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,113.87 : 109,178.17 = 43,303.11 : x
  2. Step 2: Convert to fraction form
    79,113.87/109,178.17 = 43,303.11/x
  3. Step 3: Cross multiply
    79,113.87x = 109,178.17 × 43,303.11
  4. Step 4: Simplify right side
    79,113.87x = 4,727,754,305.11
  5. Step 5: Solve for x
    x = 4,727,754,305.11/79,113.87
  6. Step 6: Final answer
    x = 59,758.86

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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.