Home / 51,812.40-77,707.08-18,534.72

Finding the Fourth Proportional to 51,812.40, 77,707.08 and 18,534.72

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Solution

The fourth proportional to 51,812.40, 77,707.08 and 18,534.72 is: 27,797.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,812.40 : 77,707.08 = 18,534.72 : x
  2. Step 2: Convert to fraction form
    51,812.40/77,707.08 = 18,534.72/x
  3. Step 3: Cross multiply
    51,812.40x = 77,707.08 × 18,534.72
  4. Step 4: Simplify right side
    51,812.40x = 1,440,278,969.82
  5. Step 5: Solve for x
    x = 1,440,278,969.82/51,812.40
  6. Step 6: Final answer
    x = 27,797.96

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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.