Home / 83,873.28-115,742.56-45,631.84

Finding the Fourth Proportional to 83,873.28, 115,742.56 and 45,631.84

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Solution

The fourth proportional to 83,873.28, 115,742.56 and 45,631.84 is: 62,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,873.28 : 115,742.56 = 45,631.84 : x
  2. Step 2: Convert to fraction form
    83,873.28/115,742.56 = 45,631.84/x
  3. Step 3: Cross multiply
    83,873.28x = 115,742.56 × 45,631.84
  4. Step 4: Simplify right side
    83,873.28x = 5,281,545,979.11
  5. Step 5: Solve for x
    x = 5,281,545,979.11/83,873.28
  6. Step 6: Final answer
    x = 62,970.54

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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.