Home / 81,726.84-112,750.38-51,504.12

Finding the Fourth Proportional to 81,726.84, 112,750.38 and 51,504.12

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Solution

The fourth proportional to 81,726.84, 112,750.38 and 51,504.12 is: 71,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,726.84 : 112,750.38 = 51,504.12 : x
  2. Step 2: Convert to fraction form
    81,726.84/112,750.38 = 51,504.12/x
  3. Step 3: Cross multiply
    81,726.84x = 112,750.38 × 51,504.12
  4. Step 4: Simplify right side
    81,726.84x = 5,807,109,101.57
  5. Step 5: Solve for x
    x = 5,807,109,101.57/81,726.84
  6. Step 6: Final answer
    x = 71,055.10

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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.