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Finding the Fourth Proportional to 69,642.47, 96,108.57 and 40,964.22

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Solution

The fourth proportional to 69,642.47, 96,108.57 and 40,964.22 is: 56,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,642.47 : 96,108.57 = 40,964.22 : x
  2. Step 2: Convert to fraction form
    69,642.47/96,108.57 = 40,964.22/x
  3. Step 3: Cross multiply
    69,642.47x = 96,108.57 × 40,964.22
  4. Step 4: Simplify right side
    69,642.47x = 3,937,012,605.37
  5. Step 5: Solve for x
    x = 3,937,012,605.37/69,642.47
  6. Step 6: Final answer
    x = 56,531.78

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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.