Home / 51,548.79-71,142.32-28,891.61

Finding the Fourth Proportional to 51,548.79, 71,142.32 and 28,891.61

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Solution

The fourth proportional to 51,548.79, 71,142.32 and 28,891.61 is: 39,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,548.79 : 71,142.32 = 28,891.61 : x
  2. Step 2: Convert to fraction form
    51,548.79/71,142.32 = 28,891.61/x
  3. Step 3: Cross multiply
    51,548.79x = 71,142.32 × 28,891.61
  4. Step 4: Simplify right side
    51,548.79x = 2,055,415,663.77
  5. Step 5: Solve for x
    x = 2,055,415,663.77/51,548.79
  6. Step 6: Final answer
    x = 39,873.21

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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.