Home / 74,743.10-112,058.85-45,154.70

Finding the Fourth Proportional to 74,743.10, 112,058.85 and 45,154.70

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Solution

The fourth proportional to 74,743.10, 112,058.85 and 45,154.70 is: 67,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,743.10 : 112,058.85 = 45,154.70 : x
  2. Step 2: Convert to fraction form
    74,743.10/112,058.85 = 45,154.70/x
  3. Step 3: Cross multiply
    74,743.10x = 112,058.85 × 45,154.70
  4. Step 4: Simplify right side
    74,743.10x = 5,059,983,754.10
  5. Step 5: Solve for x
    x = 5,059,983,754.10/74,743.10
  6. Step 6: Final answer
    x = 67,698.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.