Home / 51,478.06-77,223.34-18,191.30

Finding the Fourth Proportional to 51,478.06, 77,223.34 and 18,191.30

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Solution

The fourth proportional to 51,478.06, 77,223.34 and 18,191.30 is: 27,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.06 : 77,223.34 = 18,191.30 : x
  2. Step 2: Convert to fraction form
    51,478.06/77,223.34 = 18,191.30/x
  3. Step 3: Cross multiply
    51,478.06x = 77,223.34 × 18,191.30
  4. Step 4: Simplify right side
    51,478.06x = 1,404,792,944.94
  5. Step 5: Solve for x
    x = 1,404,792,944.94/51,478.06
  6. Step 6: Final answer
    x = 27,289.16

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1.5x scale

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.