Home / 52,568.90-78,802.32-20,969.78

Finding the Fourth Proportional to 52,568.90, 78,802.32 and 20,969.78

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Solution

The fourth proportional to 52,568.90, 78,802.32 and 20,969.78 is: 31,434.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,568.90 : 78,802.32 = 20,969.78 : x
  2. Step 2: Convert to fraction form
    52,568.90/78,802.32 = 20,969.78/x
  3. Step 3: Cross multiply
    52,568.90x = 78,802.32 × 20,969.78
  4. Step 4: Simplify right side
    52,568.90x = 1,652,467,313.89
  5. Step 5: Solve for x
    x = 1,652,467,313.89/52,568.90
  6. Step 6: Final answer
    x = 31,434.31

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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.