Home / 40,916.77-61,243.16-21,168.13

Finding the Fourth Proportional to 40,916.77, 61,243.16 and 21,168.13

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Solution

The fourth proportional to 40,916.77, 61,243.16 and 21,168.13 is: 31,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,916.77 : 61,243.16 = 21,168.13 : x
  2. Step 2: Convert to fraction form
    40,916.77/61,243.16 = 21,168.13/x
  3. Step 3: Cross multiply
    40,916.77x = 61,243.16 × 21,168.13
  4. Step 4: Simplify right side
    40,916.77x = 1,296,403,066.65
  5. Step 5: Solve for x
    x = 1,296,403,066.65/40,916.77
  6. Step 6: Final answer
    x = 31,683.91

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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.