Home / 55,871.52-77,099.48-30,721.04

Finding the Fourth Proportional to 55,871.52, 77,099.48 and 30,721.04

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Solution

The fourth proportional to 55,871.52, 77,099.48 and 30,721.04 is: 42,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,871.52 : 77,099.48 = 30,721.04 : x
  2. Step 2: Convert to fraction form
    55,871.52/77,099.48 = 30,721.04/x
  3. Step 3: Cross multiply
    55,871.52x = 77,099.48 × 30,721.04
  4. Step 4: Simplify right side
    55,871.52x = 2,368,576,209.06
  5. Step 5: Solve for x
    x = 2,368,576,209.06/55,871.52
  6. Step 6: Final answer
    x = 42,393.27

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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.