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Finding the Fourth Proportional to 69,718.39, 96,211.11 and 39,509.46

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Solution

The fourth proportional to 69,718.39, 96,211.11 and 39,509.46 is: 54,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,718.39 : 96,211.11 = 39,509.46 : x
  2. Step 2: Convert to fraction form
    69,718.39/96,211.11 = 39,509.46/x
  3. Step 3: Cross multiply
    69,718.39x = 96,211.11 × 39,509.46
  4. Step 4: Simplify right side
    69,718.39x = 3,801,249,002.10
  5. Step 5: Solve for x
    x = 3,801,249,002.10/69,718.39
  6. Step 6: Final answer
    x = 54,522.90

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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.