Home / 89,639.55-123,740.87-63,814.77

Finding the Fourth Proportional to 89,639.55, 123,740.87 and 63,814.77

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Solution

The fourth proportional to 89,639.55, 123,740.87 and 63,814.77 is: 88,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,639.55 : 123,740.87 = 63,814.77 : x
  2. Step 2: Convert to fraction form
    89,639.55/123,740.87 = 63,814.77/x
  3. Step 3: Cross multiply
    89,639.55x = 123,740.87 × 63,814.77
  4. Step 4: Simplify right side
    89,639.55x = 7,896,494,839.58
  5. Step 5: Solve for x
    x = 7,896,494,839.58/89,639.55
  6. Step 6: Final answer
    x = 88,091.64

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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.