Home / 81,260.16-112,144.76-45,453.52

Finding the Fourth Proportional to 81,260.16, 112,144.76 and 45,453.52

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Solution

The fourth proportional to 81,260.16, 112,144.76 and 45,453.52 is: 62,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.16 : 112,144.76 = 45,453.52 : x
  2. Step 2: Convert to fraction form
    81,260.16/112,144.76 = 45,453.52/x
  3. Step 3: Cross multiply
    81,260.16x = 112,144.76 × 45,453.52
  4. Step 4: Simplify right side
    81,260.16x = 5,097,374,091.56
  5. Step 5: Solve for x
    x = 5,097,374,091.56/81,260.16
  6. Step 6: Final answer
    x = 62,729.07

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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.