Home / 81,767.36-122,598.78-39,055.25

Finding the Fourth Proportional to 81,767.36, 122,598.78 and 39,055.25

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Solution

The fourth proportional to 81,767.36, 122,598.78 and 39,055.25 is: 58,557.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,767.36 : 122,598.78 = 39,055.25 : x
  2. Step 2: Convert to fraction form
    81,767.36/122,598.78 = 39,055.25/x
  3. Step 3: Cross multiply
    81,767.36x = 122,598.78 × 39,055.25
  4. Step 4: Simplify right side
    81,767.36x = 4,788,125,389.60
  5. Step 5: Solve for x
    x = 4,788,125,389.60/81,767.36
  6. Step 6: Final answer
    x = 58,557.91

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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.