Home / 71,900.85-99,224.15-40,068.66

Finding the Fourth Proportional to 71,900.85, 99,224.15 and 40,068.66

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Solution

The fourth proportional to 71,900.85, 99,224.15 and 40,068.66 is: 55,295.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,900.85 : 99,224.15 = 40,068.66 : x
  2. Step 2: Convert to fraction form
    71,900.85/99,224.15 = 40,068.66/x
  3. Step 3: Cross multiply
    71,900.85x = 99,224.15 × 40,068.66
  4. Step 4: Simplify right side
    71,900.85x = 3,975,778,529.80
  5. Step 5: Solve for x
    x = 3,975,778,529.80/71,900.85
  6. Step 6: Final answer
    x = 55,295.29

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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.