Home / 74,610.12-102,963.63-42,346.87

Finding the Fourth Proportional to 74,610.12, 102,963.63 and 42,346.87

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Solution

The fourth proportional to 74,610.12, 102,963.63 and 42,346.87 is: 58,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,610.12 : 102,963.63 = 42,346.87 : x
  2. Step 2: Convert to fraction form
    74,610.12/102,963.63 = 42,346.87/x
  3. Step 3: Cross multiply
    74,610.12x = 102,963.63 × 42,346.87
  4. Step 4: Simplify right side
    74,610.12x = 4,360,187,454.34
  5. Step 5: Solve for x
    x = 4,360,187,454.34/74,610.12
  6. Step 6: Final answer
    x = 58,439.63

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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.