Home / 40,075.48-60,120.78-12,367

Finding the Fourth Proportional to 40,075.48, 60,120.78 and 12,367

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Solution

The fourth proportional to 40,075.48, 60,120.78 and 12,367 is: 18,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,075.48 : 60,120.78 = 12,367 : x
  2. Step 2: Convert to fraction form
    40,075.48/60,120.78 = 12,367/x
  3. Step 3: Cross multiply
    40,075.48x = 60,120.78 × 12,367
  4. Step 4: Simplify right side
    40,075.48x = 743,513,686.26
  5. Step 5: Solve for x
    x = 743,513,686.26/40,075.48
  6. Step 6: Final answer
    x = 18,552.83

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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.