Home / 89,513.86-123,529.90-48,678.12

Finding the Fourth Proportional to 89,513.86, 123,529.90 and 48,678.12

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Solution

The fourth proportional to 89,513.86, 123,529.90 and 48,678.12 is: 67,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,513.86 : 123,529.90 = 48,678.12 : x
  2. Step 2: Convert to fraction form
    89,513.86/123,529.90 = 48,678.12/x
  3. Step 3: Cross multiply
    89,513.86x = 123,529.90 × 48,678.12
  4. Step 4: Simplify right side
    89,513.86x = 6,013,203,295.79
  5. Step 5: Solve for x
    x = 6,013,203,295.79/89,513.86
  6. Step 6: Final answer
    x = 67,176.23

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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.