Home / 65,920.56-98,893.59-21,535.38

Finding the Fourth Proportional to 65,920.56, 98,893.59 and 21,535.38

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Solution

The fourth proportional to 65,920.56, 98,893.59 and 21,535.38 is: 32,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.56 : 98,893.59 = 21,535.38 : x
  2. Step 2: Convert to fraction form
    65,920.56/98,893.59 = 21,535.38/x
  3. Step 3: Cross multiply
    65,920.56x = 98,893.59 × 21,535.38
  4. Step 4: Simplify right side
    65,920.56x = 2,129,711,040.21
  5. Step 5: Solve for x
    x = 2,129,711,040.21/65,920.56
  6. Step 6: Final answer
    x = 32,307.24

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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.