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Finding the Fourth Proportional to 71,970.93, 99,329.49 and 43,677.09

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Solution

The fourth proportional to 71,970.93, 99,329.49 and 43,677.09 is: 60,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,970.93 : 99,329.49 = 43,677.09 : x
  2. Step 2: Convert to fraction form
    71,970.93/99,329.49 = 43,677.09/x
  3. Step 3: Cross multiply
    71,970.93x = 99,329.49 × 43,677.09
  4. Step 4: Simplify right side
    71,970.93x = 4,338,423,074.38
  5. Step 5: Solve for x
    x = 4,338,423,074.38/71,970.93
  6. Step 6: Final answer
    x = 60,280.21

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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.