Home / 51,657.55-71,278.89-30,440.91

Finding the Fourth Proportional to 51,657.55, 71,278.89 and 30,440.91

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Solution

The fourth proportional to 51,657.55, 71,278.89 and 30,440.91 is: 42,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,657.55 : 71,278.89 = 30,440.91 : x
  2. Step 2: Convert to fraction form
    51,657.55/71,278.89 = 30,440.91/x
  3. Step 3: Cross multiply
    51,657.55x = 71,278.89 × 30,440.91
  4. Step 4: Simplify right side
    51,657.55x = 2,169,794,428.53
  5. Step 5: Solve for x
    x = 2,169,794,428.53/51,657.55
  6. Step 6: Final answer
    x = 42,003.43

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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.