Home / 75,968.67-113,972.81-42,713.31

Finding the Fourth Proportional to 75,968.67, 113,972.81 and 42,713.31

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Solution

The fourth proportional to 75,968.67, 113,972.81 and 42,713.31 is: 64,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,968.67 : 113,972.81 = 42,713.31 : x
  2. Step 2: Convert to fraction form
    75,968.67/113,972.81 = 42,713.31/x
  3. Step 3: Cross multiply
    75,968.67x = 113,972.81 × 42,713.31
  4. Step 4: Simplify right side
    75,968.67x = 4,868,155,751.53
  5. Step 5: Solve for x
    x = 4,868,155,751.53/75,968.67
  6. Step 6: Final answer
    x = 64,081.10

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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.