Home / 74,301.28-102,510.88-42,447.64

Finding the Fourth Proportional to 74,301.28, 102,510.88 and 42,447.64

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Solution

The fourth proportional to 74,301.28, 102,510.88 and 42,447.64 is: 58,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,301.28 : 102,510.88 = 42,447.64 : x
  2. Step 2: Convert to fraction form
    74,301.28/102,510.88 = 42,447.64/x
  3. Step 3: Cross multiply
    74,301.28x = 102,510.88 × 42,447.64
  4. Step 4: Simplify right side
    74,301.28x = 4,351,344,930.32
  5. Step 5: Solve for x
    x = 4,351,344,930.32/74,301.28
  6. Step 6: Final answer
    x = 58,563.53

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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.