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Finding the Fourth Proportional to 60,420, 90,649.26 and 25,350.24

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Solution

The fourth proportional to 60,420, 90,649.26 and 25,350.24 is: 38,033.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,420 : 90,649.26 = 25,350.24 : x
  2. Step 2: Convert to fraction form
    60,420/90,649.26 = 25,350.24/x
  3. Step 3: Cross multiply
    60,420x = 90,649.26 × 25,350.24
  4. Step 4: Simplify right side
    60,420x = 2,297,980,496.82
  5. Step 5: Solve for x
    x = 2,297,980,496.82/60,420
  6. Step 6: Final answer
    x = 38,033.44

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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.