Home / 68,386.95-102,570.17-21,633.75

Finding the Fourth Proportional to 68,386.95, 102,570.17 and 21,633.75

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Solution

The fourth proportional to 68,386.95, 102,570.17 and 21,633.75 is: 32,447.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,386.95 : 102,570.17 = 21,633.75 : x
  2. Step 2: Convert to fraction form
    68,386.95/102,570.17 = 21,633.75/x
  3. Step 3: Cross multiply
    68,386.95x = 102,570.17 × 21,633.75
  4. Step 4: Simplify right side
    68,386.95x = 2,218,977,307.07
  5. Step 5: Solve for x
    x = 2,218,977,307.07/68,386.95
  6. Step 6: Final answer
    x = 32,447.38

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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.