Home / 75,086.48-103,630.97-42,821.17

Finding the Fourth Proportional to 75,086.48, 103,630.97 and 42,821.17

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Solution

The fourth proportional to 75,086.48, 103,630.97 and 42,821.17 is: 59,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,086.48 : 103,630.97 = 42,821.17 : x
  2. Step 2: Convert to fraction form
    75,086.48/103,630.97 = 42,821.17/x
  3. Step 3: Cross multiply
    75,086.48x = 103,630.97 × 42,821.17
  4. Step 4: Simplify right side
    75,086.48x = 4,437,599,383.63
  5. Step 5: Solve for x
    x = 4,437,599,383.63/75,086.48
  6. Step 6: Final answer
    x = 59,099.85

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1.5x scale

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.