Home / 62,138.07-85,721.22-42,001.98

Finding the Fourth Proportional to 62,138.07, 85,721.22 and 42,001.98

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Solution

The fourth proportional to 62,138.07, 85,721.22 and 42,001.98 is: 57,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138.07 : 85,721.22 = 42,001.98 : x
  2. Step 2: Convert to fraction form
    62,138.07/85,721.22 = 42,001.98/x
  3. Step 3: Cross multiply
    62,138.07x = 85,721.22 × 42,001.98
  4. Step 4: Simplify right side
    62,138.07x = 3,600,460,968.02
  5. Step 5: Solve for x
    x = 3,600,460,968.02/62,138.07
  6. Step 6: Final answer
    x = 57,942.92

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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.