Home / 84,828.31-127,242.36-21,648.42

Finding the Fourth Proportional to 84,828.31, 127,242.36 and 21,648.42

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Solution

The fourth proportional to 84,828.31, 127,242.36 and 21,648.42 is: 32,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,828.31 : 127,242.36 = 21,648.42 : x
  2. Step 2: Convert to fraction form
    84,828.31/127,242.36 = 21,648.42/x
  3. Step 3: Cross multiply
    84,828.31x = 127,242.36 × 21,648.42
  4. Step 4: Simplify right side
    84,828.31x = 2,754,596,051.07
  5. Step 5: Solve for x
    x = 2,754,596,051.07/84,828.31
  6. Step 6: Final answer
    x = 32,472.60

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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.