Home / 51,663.60-71,287.02-30,447.06

Finding the Fourth Proportional to 51,663.60, 71,287.02 and 30,447.06

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Solution

The fourth proportional to 51,663.60, 71,287.02 and 30,447.06 is: 42,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,663.60 : 71,287.02 = 30,447.06 : x
  2. Step 2: Convert to fraction form
    51,663.60/71,287.02 = 30,447.06/x
  3. Step 3: Cross multiply
    51,663.60x = 71,287.02 × 30,447.06
  4. Step 4: Simplify right side
    51,663.60x = 2,170,480,175.16
  5. Step 5: Solve for x
    x = 2,170,480,175.16/51,663.60
  6. Step 6: Final answer
    x = 42,011.79

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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.