Home / 68,988.04-103,554.43-61,140.76

Finding the Fourth Proportional to 68,988.04, 103,554.43 and 61,140.76

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Solution

The fourth proportional to 68,988.04, 103,554.43 and 61,140.76 is: 91,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,988.04 : 103,554.43 = 61,140.76 : x
  2. Step 2: Convert to fraction form
    68,988.04/103,554.43 = 61,140.76/x
  3. Step 3: Cross multiply
    68,988.04x = 103,554.43 × 61,140.76
  4. Step 4: Simplify right side
    68,988.04x = 6,331,396,139.83
  5. Step 5: Solve for x
    x = 6,331,396,139.83/68,988.04
  6. Step 6: Final answer
    x = 91,775.28

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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.