Home / 91,821.83-137,806.56-47,461.58

Finding the Fourth Proportional to 91,821.83, 137,806.56 and 47,461.58

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Solution

The fourth proportional to 91,821.83, 137,806.56 and 47,461.58 is: 71,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,821.83 : 137,806.56 = 47,461.58 : x
  2. Step 2: Convert to fraction form
    91,821.83/137,806.56 = 47,461.58/x
  3. Step 3: Cross multiply
    91,821.83x = 137,806.56 × 47,461.58
  4. Step 4: Simplify right side
    91,821.83x = 6,540,517,071.96
  5. Step 5: Solve for x
    x = 6,540,517,071.96/91,821.83
  6. Step 6: Final answer
    x = 71,230.52

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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.