Home / 81,279.36-112,160.25-45,463.23

Finding the Fourth Proportional to 81,279.36, 112,160.25 and 45,463.23

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Solution

The fourth proportional to 81,279.36, 112,160.25 and 45,463.23 is: 62,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,279.36 : 112,160.25 = 45,463.23 : x
  2. Step 2: Convert to fraction form
    81,279.36/112,160.25 = 45,463.23/x
  3. Step 3: Cross multiply
    81,279.36x = 112,160.25 × 45,463.23
  4. Step 4: Simplify right side
    81,279.36x = 5,099,167,242.61
  5. Step 5: Solve for x
    x = 5,099,167,242.61/81,279.36
  6. Step 6: Final answer
    x = 62,736.31

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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.