Home / 52,717.57-78,958.73-40,790.21

Finding the Fourth Proportional to 52,717.57, 78,958.73 and 40,790.21

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Solution

The fourth proportional to 52,717.57, 78,958.73 and 40,790.21 is: 61,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,717.57 : 78,958.73 = 40,790.21 : x
  2. Step 2: Convert to fraction form
    52,717.57/78,958.73 = 40,790.21/x
  3. Step 3: Cross multiply
    52,717.57x = 78,958.73 × 40,790.21
  4. Step 4: Simplify right side
    52,717.57x = 3,220,742,885.22
  5. Step 5: Solve for x
    x = 3,220,742,885.22/52,717.57
  6. Step 6: Final answer
    x = 61,094.30

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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.