Home / 40,172.85-60,265.98-13,870.53

Finding the Fourth Proportional to 40,172.85, 60,265.98 and 13,870.53

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Solution

The fourth proportional to 40,172.85, 60,265.98 and 13,870.53 is: 20,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.85 : 60,265.98 = 13,870.53 : x
  2. Step 2: Convert to fraction form
    40,172.85/60,265.98 = 13,870.53/x
  3. Step 3: Cross multiply
    40,172.85x = 60,265.98 × 13,870.53
  4. Step 4: Simplify right side
    40,172.85x = 835,921,083.57
  5. Step 5: Solve for x
    x = 835,921,083.57/40,172.85
  6. Step 6: Final answer
    x = 20,808.11

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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.