Home / 55,943.85-83,916.90-20,876.51

Finding the Fourth Proportional to 55,943.85, 83,916.90 and 20,876.51

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Solution

The fourth proportional to 55,943.85, 83,916.90 and 20,876.51 is: 31,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,943.85 : 83,916.90 = 20,876.51 : x
  2. Step 2: Convert to fraction form
    55,943.85/83,916.90 = 20,876.51/x
  3. Step 3: Cross multiply
    55,943.85x = 83,916.90 × 20,876.51
  4. Step 4: Simplify right side
    55,943.85x = 1,751,891,897.64
  5. Step 5: Solve for x
    x = 1,751,891,897.64/55,943.85
  6. Step 6: Final answer
    x = 31,315.18

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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.