Home / 81,170.13-112,014.45-45,360.13

Finding the Fourth Proportional to 81,170.13, 112,014.45 and 45,360.13

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Solution

The fourth proportional to 81,170.13, 112,014.45 and 45,360.13 is: 62,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,170.13 : 112,014.45 = 45,360.13 : x
  2. Step 2: Convert to fraction form
    81,170.13/112,014.45 = 45,360.13/x
  3. Step 3: Cross multiply
    81,170.13x = 112,014.45 × 45,360.13
  4. Step 4: Simplify right side
    81,170.13x = 5,080,990,071.44
  5. Step 5: Solve for x
    x = 5,080,990,071.44/81,170.13
  6. Step 6: Final answer
    x = 62,596.80

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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.