Home / 81,301.92-112,191.36-45,485.76

Finding the Fourth Proportional to 81,301.92, 112,191.36 and 45,485.76

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Solution

The fourth proportional to 81,301.92, 112,191.36 and 45,485.76 is: 62,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,301.92 : 112,191.36 = 45,485.76 : x
  2. Step 2: Convert to fraction form
    81,301.92/112,191.36 = 45,485.76/x
  3. Step 3: Cross multiply
    81,301.92x = 112,191.36 × 45,485.76
  4. Step 4: Simplify right side
    81,301.92x = 5,103,109,275.03
  5. Step 5: Solve for x
    x = 5,103,109,275.03/81,301.92
  6. Step 6: Final answer
    x = 62,767.39

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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.