Home / 84,822.80-127,238.57-21,643.47

Finding the Fourth Proportional to 84,822.80, 127,238.57 and 21,643.47

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Solution

The fourth proportional to 84,822.80, 127,238.57 and 21,643.47 is: 32,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,822.80 : 127,238.57 = 21,643.47 : x
  2. Step 2: Convert to fraction form
    84,822.80/127,238.57 = 21,643.47/x
  3. Step 3: Cross multiply
    84,822.80x = 127,238.57 × 21,643.47
  4. Step 4: Simplify right side
    84,822.80x = 2,753,884,064.42
  5. Step 5: Solve for x
    x = 2,753,884,064.42/84,822.80
  6. Step 6: Final answer
    x = 32,466.32

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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.