Home / 81,258.24-112,138.02-45,444.36

Finding the Fourth Proportional to 81,258.24, 112,138.02 and 45,444.36

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Solution

The fourth proportional to 81,258.24, 112,138.02 and 45,444.36 is: 62,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,258.24 : 112,138.02 = 45,444.36 : x
  2. Step 2: Convert to fraction form
    81,258.24/112,138.02 = 45,444.36/x
  3. Step 3: Cross multiply
    81,258.24x = 112,138.02 × 45,444.36
  4. Step 4: Simplify right side
    81,258.24x = 5,096,040,550.57
  5. Step 5: Solve for x
    x = 5,096,040,550.57/81,258.24
  6. Step 6: Final answer
    x = 62,714.14

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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.