Home / 51,528.33-71,115.39-31,388.18

Finding the Fourth Proportional to 51,528.33, 71,115.39 and 31,388.18

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Solution

The fourth proportional to 51,528.33, 71,115.39 and 31,388.18 is: 43,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,528.33 : 71,115.39 = 31,388.18 : x
  2. Step 2: Convert to fraction form
    51,528.33/71,115.39 = 31,388.18/x
  3. Step 3: Cross multiply
    51,528.33x = 71,115.39 × 31,388.18
  4. Step 4: Simplify right side
    51,528.33x = 2,232,182,306.51
  5. Step 5: Solve for x
    x = 2,232,182,306.51/51,528.33
  6. Step 6: Final answer
    x = 43,319.52

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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.