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Finding the Fourth Proportional to 51,360, 70,882.56 and 29,005.44

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Solution

The fourth proportional to 51,360, 70,882.56 and 29,005.44 is: 40,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,360 : 70,882.56 = 29,005.44 : x
  2. Step 2: Convert to fraction form
    51,360/70,882.56 = 29,005.44/x
  3. Step 3: Cross multiply
    51,360x = 70,882.56 × 29,005.44
  4. Step 4: Simplify right side
    51,360x = 2,055,979,841.13
  5. Step 5: Solve for x
    x = 2,055,979,841.13/51,360
  6. Step 6: Final answer
    x = 40,030.76

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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.