Home / 49,947.30-74,920.95-30,215.70

Finding the Fourth Proportional to 49,947.30, 74,920.95 and 30,215.70

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Solution

The fourth proportional to 49,947.30, 74,920.95 and 30,215.70 is: 45,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,947.30 : 74,920.95 = 30,215.70 : x
  2. Step 2: Convert to fraction form
    49,947.30/74,920.95 = 30,215.70/x
  3. Step 3: Cross multiply
    49,947.30x = 74,920.95 × 30,215.70
  4. Step 4: Simplify right side
    49,947.30x = 2,263,788,948.92
  5. Step 5: Solve for x
    x = 2,263,788,948.92/49,947.30
  6. Step 6: Final answer
    x = 45,323.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.