Home / 42,109.70-63,146.06-15,795.99

Finding the Fourth Proportional to 42,109.70, 63,146.06 and 15,795.99

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Solution

The fourth proportional to 42,109.70, 63,146.06 and 15,795.99 is: 23,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,109.70 : 63,146.06 = 15,795.99 : x
  2. Step 2: Convert to fraction form
    42,109.70/63,146.06 = 15,795.99/x
  3. Step 3: Cross multiply
    42,109.70x = 63,146.06 × 15,795.99
  4. Step 4: Simplify right side
    42,109.70x = 997,454,290.53
  5. Step 5: Solve for x
    x = 997,454,290.53/42,109.70
  6. Step 6: Final answer
    x = 23,687.04

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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.