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Finding the Fourth Proportional to 66,649.36, 99,973.68 and 25,067.20

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Solution

The fourth proportional to 66,649.36, 99,973.68 and 25,067.20 is: 37,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,649.36 : 99,973.68 = 25,067.20 : x
  2. Step 2: Convert to fraction form
    66,649.36/99,973.68 = 25,067.20/x
  3. Step 3: Cross multiply
    66,649.36x = 99,973.68 × 25,067.20
  4. Step 4: Simplify right side
    66,649.36x = 2,506,060,231.30
  5. Step 5: Solve for x
    x = 2,506,060,231.30/66,649.36
  6. Step 6: Final answer
    x = 37,600.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.