Home / 42,673.18-63,849.39-40,423

Finding the Fourth Proportional to 42,673.18, 63,849.39 and 40,423

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Solution

The fourth proportional to 42,673.18, 63,849.39 and 40,423 is: 60,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,673.18 : 63,849.39 = 40,423 : x
  2. Step 2: Convert to fraction form
    42,673.18/63,849.39 = 40,423/x
  3. Step 3: Cross multiply
    42,673.18x = 63,849.39 × 40,423
  4. Step 4: Simplify right side
    42,673.18x = 2,580,983,891.97
  5. Step 5: Solve for x
    x = 2,580,983,891.97/42,673.18
  6. Step 6: Final answer
    x = 60,482.58

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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.