Home / 89,643.09-123,791.45-56,167.41

Finding the Fourth Proportional to 89,643.09, 123,791.45 and 56,167.41

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Solution

The fourth proportional to 89,643.09, 123,791.45 and 56,167.41 is: 77,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,643.09 : 123,791.45 = 56,167.41 : x
  2. Step 2: Convert to fraction form
    89,643.09/123,791.45 = 56,167.41/x
  3. Step 3: Cross multiply
    89,643.09x = 123,791.45 × 56,167.41
  4. Step 4: Simplify right side
    89,643.09x = 6,953,044,845.81
  5. Step 5: Solve for x
    x = 6,953,044,845.81/89,643.09
  6. Step 6: Final answer
    x = 77,563.65

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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.