Home / 45,439.28-62,725.56-30,543.92

Finding the Fourth Proportional to 45,439.28, 62,725.56 and 30,543.92

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Solution

The fourth proportional to 45,439.28, 62,725.56 and 30,543.92 is: 42,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,439.28 : 62,725.56 = 30,543.92 : x
  2. Step 2: Convert to fraction form
    45,439.28/62,725.56 = 30,543.92/x
  3. Step 3: Cross multiply
    45,439.28x = 62,725.56 × 30,543.92
  4. Step 4: Simplify right side
    45,439.28x = 1,915,884,486.60
  5. Step 5: Solve for x
    x = 1,915,884,486.60/45,439.28
  6. Step 6: Final answer
    x = 42,163.62

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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.