Home / 65,612.82-98,434.86-21,239.58

Finding the Fourth Proportional to 65,612.82, 98,434.86 and 21,239.58

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Solution

The fourth proportional to 65,612.82, 98,434.86 and 21,239.58 is: 31,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,612.82 : 98,434.86 = 21,239.58 : x
  2. Step 2: Convert to fraction form
    65,612.82/98,434.86 = 21,239.58/x
  3. Step 3: Cross multiply
    65,612.82x = 98,434.86 × 21,239.58
  4. Step 4: Simplify right side
    65,612.82x = 2,090,715,083.76
  5. Step 5: Solve for x
    x = 2,090,715,083.76/65,612.82
  6. Step 6: Final answer
    x = 31,864.43

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1.5x scale

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.