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Finding the Fourth Proportional to 71,531.30, 98,716.62 and 41,320.63

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Solution

The fourth proportional to 71,531.30, 98,716.62 and 41,320.63 is: 57,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,531.30 : 98,716.62 = 41,320.63 : x
  2. Step 2: Convert to fraction form
    71,531.30/98,716.62 = 41,320.63/x
  3. Step 3: Cross multiply
    71,531.30x = 98,716.62 × 41,320.63
  4. Step 4: Simplify right side
    71,531.30x = 4,079,033,208.22
  5. Step 5: Solve for x
    x = 4,079,033,208.22/71,531.30
  6. Step 6: Final answer
    x = 57,024.45

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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.