Home / 40,878.03-61,283.61-21,162.21

Finding the Fourth Proportional to 40,878.03, 61,283.61 and 21,162.21

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Solution

The fourth proportional to 40,878.03, 61,283.61 and 21,162.21 is: 31,726.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878.03 : 61,283.61 = 21,162.21 : x
  2. Step 2: Convert to fraction form
    40,878.03/61,283.61 = 21,162.21/x
  3. Step 3: Cross multiply
    40,878.03x = 61,283.61 × 21,162.21
  4. Step 4: Simplify right side
    40,878.03x = 1,296,896,624.38
  5. Step 5: Solve for x
    x = 1,296,896,624.38/40,878.03
  6. Step 6: Final answer
    x = 31,726.01

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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.