Home / 49,139.19-73,721.21-21,045.15

Finding the Fourth Proportional to 49,139.19, 73,721.21 and 21,045.15

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Solution

The fourth proportional to 49,139.19, 73,721.21 and 21,045.15 is: 31,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,139.19 : 73,721.21 = 21,045.15 : x
  2. Step 2: Convert to fraction form
    49,139.19/73,721.21 = 21,045.15/x
  3. Step 3: Cross multiply
    49,139.19x = 73,721.21 × 21,045.15
  4. Step 4: Simplify right side
    49,139.19x = 1,551,473,817.41
  5. Step 5: Solve for x
    x = 1,551,473,817.41/49,139.19
  6. Step 6: Final answer
    x = 31,573.04

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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.