Home / 81,405.60-112,336.40-45,595.04

Finding the Fourth Proportional to 81,405.60, 112,336.40 and 45,595.04

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Solution

The fourth proportional to 81,405.60, 112,336.40 and 45,595.04 is: 62,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,405.60 : 112,336.40 = 45,595.04 : x
  2. Step 2: Convert to fraction form
    81,405.60/112,336.40 = 45,595.04/x
  3. Step 3: Cross multiply
    81,405.60x = 112,336.40 × 45,595.04
  4. Step 4: Simplify right side
    81,405.60x = 5,121,982,651.46
  5. Step 5: Solve for x
    x = 5,121,982,651.46/81,405.60
  6. Step 6: Final answer
    x = 62,919.29

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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.