Home / 74,076.08-102,222.42-42,255.20

Finding the Fourth Proportional to 74,076.08, 102,222.42 and 42,255.20

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Solution

The fourth proportional to 74,076.08, 102,222.42 and 42,255.20 is: 58,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,076.08 : 102,222.42 = 42,255.20 : x
  2. Step 2: Convert to fraction form
    74,076.08/102,222.42 = 42,255.20/x
  3. Step 3: Cross multiply
    74,076.08x = 102,222.42 × 42,255.20
  4. Step 4: Simplify right side
    74,076.08x = 4,319,428,801.58
  5. Step 5: Solve for x
    x = 4,319,428,801.58/74,076.08
  6. Step 6: Final answer
    x = 58,310.71

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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.