Home / 89,647.91-134,428.95-52,218.65

Finding the Fourth Proportional to 89,647.91, 134,428.95 and 52,218.65

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Solution

The fourth proportional to 89,647.91, 134,428.95 and 52,218.65 is: 78,302.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,647.91 : 134,428.95 = 52,218.65 : x
  2. Step 2: Convert to fraction form
    89,647.91/134,428.95 = 52,218.65/x
  3. Step 3: Cross multiply
    89,647.91x = 134,428.95 × 52,218.65
  4. Step 4: Simplify right side
    89,647.91x = 7,019,697,617.77
  5. Step 5: Solve for x
    x = 7,019,697,617.77/89,647.91
  6. Step 6: Final answer
    x = 78,302.97

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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.