Home / 89,910.29-124,074.51-49,621.70

Finding the Fourth Proportional to 89,910.29, 124,074.51 and 49,621.70

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Solution

The fourth proportional to 89,910.29, 124,074.51 and 49,621.70 is: 68,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,910.29 : 124,074.51 = 49,621.70 : x
  2. Step 2: Convert to fraction form
    89,910.29/124,074.51 = 49,621.70/x
  3. Step 3: Cross multiply
    89,910.29x = 124,074.51 × 49,621.70
  4. Step 4: Simplify right side
    89,910.29x = 6,156,788,112.87
  5. Step 5: Solve for x
    x = 6,156,788,112.87/89,910.29
  6. Step 6: Final answer
    x = 68,477.01

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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.