Home / 51,570.18-77,360.67-21,991.14

Finding the Fourth Proportional to 51,570.18, 77,360.67 and 21,991.14

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Solution

The fourth proportional to 51,570.18, 77,360.67 and 21,991.14 is: 32,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,570.18 : 77,360.67 = 21,991.14 : x
  2. Step 2: Convert to fraction form
    51,570.18/77,360.67 = 21,991.14/x
  3. Step 3: Cross multiply
    51,570.18x = 77,360.67 × 21,991.14
  4. Step 4: Simplify right side
    51,570.18x = 1,701,249,324.46
  5. Step 5: Solve for x
    x = 1,701,249,324.46/51,570.18
  6. Step 6: Final answer
    x = 32,989.01

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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.