Home / 75,250.89-103,848.21-42,542.70

Finding the Fourth Proportional to 75,250.89, 103,848.21 and 42,542.70

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Solution

The fourth proportional to 75,250.89, 103,848.21 and 42,542.70 is: 58,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,250.89 : 103,848.21 = 42,542.70 : x
  2. Step 2: Convert to fraction form
    75,250.89/103,848.21 = 42,542.70/x
  3. Step 3: Cross multiply
    75,250.89x = 103,848.21 × 42,542.70
  4. Step 4: Simplify right side
    75,250.89x = 4,417,983,243.57
  5. Step 5: Solve for x
    x = 4,417,983,243.57/75,250.89
  6. Step 6: Final answer
    x = 58,710.05

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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.