Home / 74,534.91-102,876.45-42,288.41

Finding the Fourth Proportional to 74,534.91, 102,876.45 and 42,288.41

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Solution

The fourth proportional to 74,534.91, 102,876.45 and 42,288.41 is: 58,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,534.91 : 102,876.45 = 42,288.41 : x
  2. Step 2: Convert to fraction form
    74,534.91/102,876.45 = 42,288.41/x
  3. Step 3: Cross multiply
    74,534.91x = 102,876.45 × 42,288.41
  4. Step 4: Simplify right side
    74,534.91x = 4,350,480,982.56
  5. Step 5: Solve for x
    x = 4,350,480,982.56/74,534.91
  6. Step 6: Final answer
    x = 58,368.37

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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.