Home / 51,755.13-77,686.92-45,869.67

Finding the Fourth Proportional to 51,755.13, 77,686.92 and 45,869.67

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Solution

The fourth proportional to 51,755.13, 77,686.92 and 45,869.67 is: 68,852.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,755.13 : 77,686.92 = 45,869.67 : x
  2. Step 2: Convert to fraction form
    51,755.13/77,686.92 = 45,869.67/x
  3. Step 3: Cross multiply
    51,755.13x = 77,686.92 × 45,869.67
  4. Step 4: Simplify right side
    51,755.13x = 3,563,473,383.72
  5. Step 5: Solve for x
    x = 3,563,473,383.72/51,755.13
  6. Step 6: Final answer
    x = 68,852.56

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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.