Home / 69,459.66-103,579.43-68,828.13

Finding the Fourth Proportional to 69,459.66, 103,579.43 and 68,828.13

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Solution

The fourth proportional to 69,459.66, 103,579.43 and 68,828.13 is: 102,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459.66 : 103,579.43 = 68,828.13 : x
  2. Step 2: Convert to fraction form
    69,459.66/103,579.43 = 68,828.13/x
  3. Step 3: Cross multiply
    69,459.66x = 103,579.43 × 68,828.13
  4. Step 4: Simplify right side
    69,459.66x = 7,129,178,129.23
  5. Step 5: Solve for x
    x = 7,129,178,129.23/69,459.66
  6. Step 6: Final answer
    x = 102,637.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.