Home / 89,823.74-134,736.29-39,890.43

Finding the Fourth Proportional to 89,823.74, 134,736.29 and 39,890.43

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Solution

The fourth proportional to 89,823.74, 134,736.29 and 39,890.43 is: 59,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,823.74 : 134,736.29 = 39,890.43 : x
  2. Step 2: Convert to fraction form
    89,823.74/134,736.29 = 39,890.43/x
  3. Step 3: Cross multiply
    89,823.74x = 134,736.29 × 39,890.43
  4. Step 4: Simplify right side
    89,823.74x = 5,374,688,345.25
  5. Step 5: Solve for x
    x = 5,374,688,345.25/89,823.74
  6. Step 6: Final answer
    x = 59,835.95

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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.