Home / 74,909.80-112,222.14-39,865.96

Finding the Fourth Proportional to 74,909.80, 112,222.14 and 39,865.96

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Solution

The fourth proportional to 74,909.80, 112,222.14 and 39,865.96 is: 59,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,909.80 : 112,222.14 = 39,865.96 : x
  2. Step 2: Convert to fraction form
    74,909.80/112,222.14 = 39,865.96/x
  3. Step 3: Cross multiply
    74,909.80x = 112,222.14 × 39,865.96
  4. Step 4: Simplify right side
    74,909.80x = 4,473,843,344.35
  5. Step 5: Solve for x
    x = 4,473,843,344.35/74,909.80
  6. Step 6: Final answer
    x = 59,723.07

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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.