Home / 74,156.52-102,335.38-40,164.22

Finding the Fourth Proportional to 74,156.52, 102,335.38 and 40,164.22

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Solution

The fourth proportional to 74,156.52, 102,335.38 and 40,164.22 is: 55,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156.52 : 102,335.38 = 40,164.22 : x
  2. Step 2: Convert to fraction form
    74,156.52/102,335.38 = 40,164.22/x
  3. Step 3: Cross multiply
    74,156.52x = 102,335.38 × 40,164.22
  4. Step 4: Simplify right side
    74,156.52x = 4,110,220,359.85
  5. Step 5: Solve for x
    x = 4,110,220,359.85/74,156.52
  6. Step 6: Final answer
    x = 55,426.28

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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.