Home / 65,438.82-98,141.76-21,070.26

Finding the Fourth Proportional to 65,438.82, 98,141.76 and 21,070.26

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Solution

The fourth proportional to 65,438.82, 98,141.76 and 21,070.26 is: 31,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,438.82 : 98,141.76 = 21,070.26 : x
  2. Step 2: Convert to fraction form
    65,438.82/98,141.76 = 21,070.26/x
  3. Step 3: Cross multiply
    65,438.82x = 98,141.76 × 21,070.26
  4. Step 4: Simplify right side
    65,438.82x = 2,067,872,400.06
  5. Step 5: Solve for x
    x = 2,067,872,400.06/65,438.82
  6. Step 6: Final answer
    x = 31,600.09

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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.