Home / 51,555.06-71,142.60-30,330.24

Finding the Fourth Proportional to 51,555.06, 71,142.60 and 30,330.24

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Solution

The fourth proportional to 51,555.06, 71,142.60 and 30,330.24 is: 41,853.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,555.06 : 71,142.60 = 30,330.24 : x
  2. Step 2: Convert to fraction form
    51,555.06/71,142.60 = 30,330.24/x
  3. Step 3: Cross multiply
    51,555.06x = 71,142.60 × 30,330.24
  4. Step 4: Simplify right side
    51,555.06x = 2,157,772,132.22
  5. Step 5: Solve for x
    x = 2,157,772,132.22/51,555.06
  6. Step 6: Final answer
    x = 41,853.74

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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.