Home / 81,102.44-111,920.19-45,292.07

Finding the Fourth Proportional to 81,102.44, 111,920.19 and 45,292.07

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Solution

The fourth proportional to 81,102.44, 111,920.19 and 45,292.07 is: 62,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,102.44 : 111,920.19 = 45,292.07 : x
  2. Step 2: Convert to fraction form
    81,102.44/111,920.19 = 45,292.07/x
  3. Step 3: Cross multiply
    81,102.44x = 111,920.19 × 45,292.07
  4. Step 4: Simplify right side
    81,102.44x = 5,069,097,079.89
  5. Step 5: Solve for x
    x = 5,069,097,079.89/81,102.44
  6. Step 6: Final answer
    x = 62,502.40

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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.