Home / 90,557.51-135,856.43-29,770.53

Finding the Fourth Proportional to 90,557.51, 135,856.43 and 29,770.53

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Solution

The fourth proportional to 90,557.51, 135,856.43 and 29,770.53 is: 44,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,557.51 : 135,856.43 = 29,770.53 : x
  2. Step 2: Convert to fraction form
    90,557.51/135,856.43 = 29,770.53/x
  3. Step 3: Cross multiply
    90,557.51x = 135,856.43 × 29,770.53
  4. Step 4: Simplify right side
    90,557.51x = 4,044,517,510.94
  5. Step 5: Solve for x
    x = 4,044,517,510.94/90,557.51
  6. Step 6: Final answer
    x = 44,662.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.