Home / 91,033.14-136,611.18-31,869.30

Finding the Fourth Proportional to 91,033.14, 136,611.18 and 31,869.30

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Solution

The fourth proportional to 91,033.14, 136,611.18 and 31,869.30 is: 47,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,033.14 : 136,611.18 = 31,869.30 : x
  2. Step 2: Convert to fraction form
    91,033.14/136,611.18 = 31,869.30/x
  3. Step 3: Cross multiply
    91,033.14x = 136,611.18 × 31,869.30
  4. Step 4: Simplify right side
    91,033.14x = 4,353,702,678.77
  5. Step 5: Solve for x
    x = 4,353,702,678.77/91,033.14
  6. Step 6: Final answer
    x = 47,825.47

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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.