Home / 74,770.64-103,157.42-47,927.95

Finding the Fourth Proportional to 74,770.64, 103,157.42 and 47,927.95

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Solution

The fourth proportional to 74,770.64, 103,157.42 and 47,927.95 is: 66,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.64 : 103,157.42 = 47,927.95 : x
  2. Step 2: Convert to fraction form
    74,770.64/103,157.42 = 47,927.95/x
  3. Step 3: Cross multiply
    74,770.64x = 103,157.42 × 47,927.95
  4. Step 4: Simplify right side
    74,770.64x = 4,944,123,529.82
  5. Step 5: Solve for x
    x = 4,944,123,529.82/74,770.64
  6. Step 6: Final answer
    x = 66,123.87

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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.