Home / 72,433.39-108,681.30-39,176.87

Finding the Fourth Proportional to 72,433.39, 108,681.30 and 39,176.87

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Solution

The fourth proportional to 72,433.39, 108,681.30 and 39,176.87 is: 58,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.39 : 108,681.30 = 39,176.87 : x
  2. Step 2: Convert to fraction form
    72,433.39/108,681.30 = 39,176.87/x
  3. Step 3: Cross multiply
    72,433.39x = 108,681.30 × 39,176.87
  4. Step 4: Simplify right side
    72,433.39x = 4,257,792,965.65
  5. Step 5: Solve for x
    x = 4,257,792,965.65/72,433.39
  6. Step 6: Final answer
    x = 58,782.19

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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.