Home / 68,424.93-102,672.63-51,779.43

Finding the Fourth Proportional to 68,424.93, 102,672.63 and 51,779.43

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Solution

The fourth proportional to 68,424.93, 102,672.63 and 51,779.43 is: 77,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,424.93 : 102,672.63 = 51,779.43 : x
  2. Step 2: Convert to fraction form
    68,424.93/102,672.63 = 51,779.43/x
  3. Step 3: Cross multiply
    68,424.93x = 102,672.63 × 51,779.43
  4. Step 4: Simplify right side
    68,424.93x = 5,316,330,258.00
  5. Step 5: Solve for x
    x = 5,316,330,258.00/68,424.93
  6. Step 6: Final answer
    x = 77,695.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.