Home / 81,170.54-112,017.76-45,360.66

Finding the Fourth Proportional to 81,170.54, 112,017.76 and 45,360.66

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Solution

The fourth proportional to 81,170.54, 112,017.76 and 45,360.66 is: 62,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,170.54 : 112,017.76 = 45,360.66 : x
  2. Step 2: Convert to fraction form
    81,170.54/112,017.76 = 45,360.66/x
  3. Step 3: Cross multiply
    81,170.54x = 112,017.76 × 45,360.66
  4. Step 4: Simplify right side
    81,170.54x = 5,081,199,329.46
  5. Step 5: Solve for x
    x = 5,081,199,329.46/81,170.54
  6. Step 6: Final answer
    x = 62,599.06

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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.