Home / 40,775.42-61,137.98-14,115.21

Finding the Fourth Proportional to 40,775.42, 61,137.98 and 14,115.21

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Solution

The fourth proportional to 40,775.42, 61,137.98 and 14,115.21 is: 21,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,775.42 : 61,137.98 = 14,115.21 : x
  2. Step 2: Convert to fraction form
    40,775.42/61,137.98 = 14,115.21/x
  3. Step 3: Cross multiply
    40,775.42x = 61,137.98 × 14,115.21
  4. Step 4: Simplify right side
    40,775.42x = 862,975,206.25
  5. Step 5: Solve for x
    x = 862,975,206.25/40,775.42
  6. Step 6: Final answer
    x = 21,164.10

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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.