Home / 74,060.57-102,201.05-42,239.72

Finding the Fourth Proportional to 74,060.57, 102,201.05 and 42,239.72

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Solution

The fourth proportional to 74,060.57, 102,201.05 and 42,239.72 is: 58,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,060.57 : 102,201.05 = 42,239.72 : x
  2. Step 2: Convert to fraction form
    74,060.57/102,201.05 = 42,239.72/x
  3. Step 3: Cross multiply
    74,060.57x = 102,201.05 × 42,239.72
  4. Step 4: Simplify right side
    74,060.57x = 4,316,943,013.50
  5. Step 5: Solve for x
    x = 4,316,943,013.50/74,060.57
  6. Step 6: Final answer
    x = 58,289.36

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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.