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Finding the Fourth Proportional to 74,552.76, 102,882.42 and 42,720.84

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Solution

The fourth proportional to 74,552.76, 102,882.42 and 42,720.84 is: 58,954.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,552.76 : 102,882.42 = 42,720.84 : x
  2. Step 2: Convert to fraction form
    74,552.76/102,882.42 = 42,720.84/x
  3. Step 3: Cross multiply
    74,552.76x = 102,882.42 × 42,720.84
  4. Step 4: Simplify right side
    74,552.76x = 4,395,223,403.63
  5. Step 5: Solve for x
    x = 4,395,223,403.63/74,552.76
  6. Step 6: Final answer
    x = 58,954.54

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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.