Home / 74,447.16-102,731.76-42,615.60

Finding the Fourth Proportional to 74,447.16, 102,731.76 and 42,615.60

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Solution

The fourth proportional to 74,447.16, 102,731.76 and 42,615.60 is: 58,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,447.16 : 102,731.76 = 42,615.60 : x
  2. Step 2: Convert to fraction form
    74,447.16/102,731.76 = 42,615.60/x
  3. Step 3: Cross multiply
    74,447.16x = 102,731.76 × 42,615.60
  4. Step 4: Simplify right side
    74,447.16x = 4,377,975,591.46
  5. Step 5: Solve for x
    x = 4,377,975,591.46/74,447.16
  6. Step 6: Final answer
    x = 58,806.48

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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.