Home / 82,629.72-114,038.28-77,562.36

Finding the Fourth Proportional to 82,629.72, 114,038.28 and 77,562.36

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Solution

The fourth proportional to 82,629.72, 114,038.28 and 77,562.36 is: 107,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,629.72 : 114,038.28 = 77,562.36 : x
  2. Step 2: Convert to fraction form
    82,629.72/114,038.28 = 77,562.36/x
  3. Step 3: Cross multiply
    82,629.72x = 114,038.28 × 77,562.36
  4. Step 4: Simplify right side
    82,629.72x = 8,845,078,127.14
  5. Step 5: Solve for x
    x = 8,845,078,127.14/82,629.72
  6. Step 6: Final answer
    x = 107,044.75

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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.