Home / 89,165.81-123,048.82-51,440.06

Finding the Fourth Proportional to 89,165.81, 123,048.82 and 51,440.06

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Solution

The fourth proportional to 89,165.81, 123,048.82 and 51,440.06 is: 70,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,165.81 : 123,048.82 = 51,440.06 : x
  2. Step 2: Convert to fraction form
    89,165.81/123,048.82 = 51,440.06/x
  3. Step 3: Cross multiply
    89,165.81x = 123,048.82 × 51,440.06
  4. Step 4: Simplify right side
    89,165.81x = 6,329,639,055.65
  5. Step 5: Solve for x
    x = 6,329,639,055.65/89,165.81
  6. Step 6: Final answer
    x = 70,987.29

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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.