Home / 81,117.84-111,941.44-45,308.36

Finding the Fourth Proportional to 81,117.84, 111,941.44 and 45,308.36

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Solution

The fourth proportional to 81,117.84, 111,941.44 and 45,308.36 is: 62,524.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,117.84 : 111,941.44 = 45,308.36 : x
  2. Step 2: Convert to fraction form
    81,117.84/111,941.44 = 45,308.36/x
  3. Step 3: Cross multiply
    81,117.84x = 111,941.44 × 45,308.36
  4. Step 4: Simplify right side
    81,117.84x = 5,071,883,062.44
  5. Step 5: Solve for x
    x = 5,071,883,062.44/81,117.84
  6. Step 6: Final answer
    x = 62,524.88

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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.