Home / 74,170.52-102,354.66-40,178.24

Finding the Fourth Proportional to 74,170.52, 102,354.66 and 40,178.24

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Solution

The fourth proportional to 74,170.52, 102,354.66 and 40,178.24 is: 55,445.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.52 : 102,354.66 = 40,178.24 : x
  2. Step 2: Convert to fraction form
    74,170.52/102,354.66 = 40,178.24/x
  3. Step 3: Cross multiply
    74,170.52x = 102,354.66 × 40,178.24
  4. Step 4: Simplify right side
    74,170.52x = 4,112,430,094.60
  5. Step 5: Solve for x
    x = 4,112,430,094.60/74,170.52
  6. Step 6: Final answer
    x = 55,445.61

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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.