Home / 55,109.68-75,916.38-39,957.82

Finding the Fourth Proportional to 55,109.68, 75,916.38 and 39,957.82

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Solution

The fourth proportional to 55,109.68, 75,916.38 and 39,957.82 is: 55,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,109.68 : 75,916.38 = 39,957.82 : x
  2. Step 2: Convert to fraction form
    55,109.68/75,916.38 = 39,957.82/x
  3. Step 3: Cross multiply
    55,109.68x = 75,916.38 × 39,957.82
  4. Step 4: Simplify right side
    55,109.68x = 3,033,453,047.09
  5. Step 5: Solve for x
    x = 3,033,453,047.09/55,109.68
  6. Step 6: Final answer
    x = 55,043.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.