Home / 51,727.60-71,382.20-31,618.16

Finding the Fourth Proportional to 51,727.60, 71,382.20 and 31,618.16

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Solution

The fourth proportional to 51,727.60, 71,382.20 and 31,618.16 is: 43,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,727.60 : 71,382.20 = 31,618.16 : x
  2. Step 2: Convert to fraction form
    51,727.60/71,382.20 = 31,618.16/x
  3. Step 3: Cross multiply
    51,727.60x = 71,382.20 × 31,618.16
  4. Step 4: Simplify right side
    51,727.60x = 2,256,973,820.75
  5. Step 5: Solve for x
    x = 2,256,973,820.75/51,727.60
  6. Step 6: Final answer
    x = 43,631.91

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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.