Home / 84,272.48-126,416.28-21,943.52

Finding the Fourth Proportional to 84,272.48, 126,416.28 and 21,943.52

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Solution

The fourth proportional to 84,272.48, 126,416.28 and 21,943.52 is: 32,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,272.48 : 126,416.28 = 21,943.52 : x
  2. Step 2: Convert to fraction form
    84,272.48/126,416.28 = 21,943.52/x
  3. Step 3: Cross multiply
    84,272.48x = 126,416.28 × 21,943.52
  4. Step 4: Simplify right side
    84,272.48x = 2,774,018,168.51
  5. Step 5: Solve for x
    x = 2,774,018,168.51/84,272.48
  6. Step 6: Final answer
    x = 32,917.25

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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.