Home / 81,133.68-111,960.48-45,316.56

Finding the Fourth Proportional to 81,133.68, 111,960.48 and 45,316.56

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Solution

The fourth proportional to 81,133.68, 111,960.48 and 45,316.56 is: 62,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,133.68 : 111,960.48 = 45,316.56 : x
  2. Step 2: Convert to fraction form
    81,133.68/111,960.48 = 45,316.56/x
  3. Step 3: Cross multiply
    81,133.68x = 111,960.48 × 45,316.56
  4. Step 4: Simplify right side
    81,133.68x = 5,073,663,809.55
  5. Step 5: Solve for x
    x = 5,073,663,809.55/81,133.68
  6. Step 6: Final answer
    x = 62,534.62

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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.