Home / 89,639.49-123,651.21-56,047.17

Finding the Fourth Proportional to 89,639.49, 123,651.21 and 56,047.17

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Solution

The fourth proportional to 89,639.49, 123,651.21 and 56,047.17 is: 77,313.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,639.49 : 123,651.21 = 56,047.17 : x
  2. Step 2: Convert to fraction form
    89,639.49/123,651.21 = 56,047.17/x
  3. Step 3: Cross multiply
    89,639.49x = 123,651.21 × 56,047.17
  4. Step 4: Simplify right side
    89,639.49x = 6,930,300,387.58
  5. Step 5: Solve for x
    x = 6,930,300,387.58/89,639.49
  6. Step 6: Final answer
    x = 77,313.03

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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.