Home / 51,572.80-77,314.20-20,004.40

Finding the Fourth Proportional to 51,572.80, 77,314.20 and 20,004.40

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Solution

The fourth proportional to 51,572.80, 77,314.20 and 20,004.40 is: 29,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,572.80 : 77,314.20 = 20,004.40 : x
  2. Step 2: Convert to fraction form
    51,572.80/77,314.20 = 20,004.40/x
  3. Step 3: Cross multiply
    51,572.80x = 77,314.20 × 20,004.40
  4. Step 4: Simplify right side
    51,572.80x = 1,546,624,182.48
  5. Step 5: Solve for x
    x = 1,546,624,182.48/51,572.80
  6. Step 6: Final answer
    x = 29,989.15

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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.