Home / 45,947.20-63,402.32-30,836.80

Finding the Fourth Proportional to 45,947.20, 63,402.32 and 30,836.80

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Solution

The fourth proportional to 45,947.20, 63,402.32 and 30,836.80 is: 42,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,947.20 : 63,402.32 = 30,836.80 : x
  2. Step 2: Convert to fraction form
    45,947.20/63,402.32 = 30,836.80/x
  3. Step 3: Cross multiply
    45,947.20x = 63,402.32 × 30,836.80
  4. Step 4: Simplify right side
    45,947.20x = 1,955,124,661.38
  5. Step 5: Solve for x
    x = 1,955,124,661.38/45,947.20
  6. Step 6: Final answer
    x = 42,551.55

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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.