Home / 81,681.02-122,495.60-26,264.06

Finding the Fourth Proportional to 81,681.02, 122,495.60 and 26,264.06

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Solution

The fourth proportional to 81,681.02, 122,495.60 and 26,264.06 is: 39,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,681.02 : 122,495.60 = 26,264.06 : x
  2. Step 2: Convert to fraction form
    81,681.02/122,495.60 = 26,264.06/x
  3. Step 3: Cross multiply
    81,681.02x = 122,495.60 × 26,264.06
  4. Step 4: Simplify right side
    81,681.02x = 3,217,231,788.14
  5. Step 5: Solve for x
    x = 3,217,231,788.14/81,681.02
  6. Step 6: Final answer
    x = 39,387.75

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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.