Home / 48,109.76-66,348-30,206.72

Finding the Fourth Proportional to 48,109.76, 66,348 and 30,206.72

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Solution

The fourth proportional to 48,109.76, 66,348 and 30,206.72 is: 41,657.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,109.76 : 66,348 = 30,206.72 : x
  2. Step 2: Convert to fraction form
    48,109.76/66,348 = 30,206.72/x
  3. Step 3: Cross multiply
    48,109.76x = 66,348 × 30,206.72
  4. Step 4: Simplify right side
    48,109.76x = 2,004,155,458.56
  5. Step 5: Solve for x
    x = 2,004,155,458.56/48,109.76
  6. Step 6: Final answer
    x = 41,657.98

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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.