Home / 74,738.46-103,134.96-42,905.28

Finding the Fourth Proportional to 74,738.46, 103,134.96 and 42,905.28

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Solution

The fourth proportional to 74,738.46, 103,134.96 and 42,905.28 is: 59,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,738.46 : 103,134.96 = 42,905.28 : x
  2. Step 2: Convert to fraction form
    74,738.46/103,134.96 = 42,905.28/x
  3. Step 3: Cross multiply
    74,738.46x = 103,134.96 × 42,905.28
  4. Step 4: Simplify right side
    74,738.46x = 4,425,034,336.59
  5. Step 5: Solve for x
    x = 4,425,034,336.59/74,738.46
  6. Step 6: Final answer
    x = 59,206.92

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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.