Home / 74,739.90-103,082.78-47,884.95

Finding the Fourth Proportional to 74,739.90, 103,082.78 and 47,884.95

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Solution

The fourth proportional to 74,739.90, 103,082.78 and 47,884.95 is: 66,043.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,739.90 : 103,082.78 = 47,884.95 : x
  2. Step 2: Convert to fraction form
    74,739.90/103,082.78 = 47,884.95/x
  3. Step 3: Cross multiply
    74,739.90x = 103,082.78 × 47,884.95
  4. Step 4: Simplify right side
    74,739.90x = 4,936,113,526.74
  5. Step 5: Solve for x
    x = 4,936,113,526.74/74,739.90
  6. Step 6: Final answer
    x = 66,043.89

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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.