Home / 81,707.18-112,766.44-45,897.18

Finding the Fourth Proportional to 81,707.18, 112,766.44 and 45,897.18

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Solution

The fourth proportional to 81,707.18, 112,766.44 and 45,897.18 is: 63,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,707.18 : 112,766.44 = 45,897.18 : x
  2. Step 2: Convert to fraction form
    81,707.18/112,766.44 = 45,897.18/x
  3. Step 3: Cross multiply
    81,707.18x = 112,766.44 × 45,897.18
  4. Step 4: Simplify right side
    81,707.18x = 5,175,661,594.64
  5. Step 5: Solve for x
    x = 5,175,661,594.64/81,707.18
  6. Step 6: Final answer
    x = 63,344.02

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1.5x scale

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.