Home / 74,179.16-102,371.34-42,358.28

Finding the Fourth Proportional to 74,179.16, 102,371.34 and 42,358.28

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Solution

The fourth proportional to 74,179.16, 102,371.34 and 42,358.28 is: 58,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.16 : 102,371.34 = 42,358.28 : x
  2. Step 2: Convert to fraction form
    74,179.16/102,371.34 = 42,358.28/x
  3. Step 3: Cross multiply
    74,179.16x = 102,371.34 × 42,358.28
  4. Step 4: Simplify right side
    74,179.16x = 4,336,273,883.70
  5. Step 5: Solve for x
    x = 4,336,273,883.70/74,179.16
  6. Step 6: Final answer
    x = 58,456.77

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1.5x scale

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.