Home / 68,855.05-103,501.28-64,918.45

Finding the Fourth Proportional to 68,855.05, 103,501.28 and 64,918.45

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Solution

The fourth proportional to 68,855.05, 103,501.28 and 64,918.45 is: 97,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.05 : 103,501.28 = 64,918.45 : x
  2. Step 2: Convert to fraction form
    68,855.05/103,501.28 = 64,918.45/x
  3. Step 3: Cross multiply
    68,855.05x = 103,501.28 × 64,918.45
  4. Step 4: Simplify right side
    68,855.05x = 6,719,142,346.02
  5. Step 5: Solve for x
    x = 6,719,142,346.02/68,855.05
  6. Step 6: Final answer
    x = 97,583.87

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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.