Home / 65,808.24-98,722.60-21,424.56

Finding the Fourth Proportional to 65,808.24, 98,722.60 and 21,424.56

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Solution

The fourth proportional to 65,808.24, 98,722.60 and 21,424.56 is: 32,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,808.24 : 98,722.60 = 21,424.56 : x
  2. Step 2: Convert to fraction form
    65,808.24/98,722.60 = 21,424.56/x
  3. Step 3: Cross multiply
    65,808.24x = 98,722.60 × 21,424.56
  4. Step 4: Simplify right side
    65,808.24x = 2,115,088,267.06
  5. Step 5: Solve for x
    x = 2,115,088,267.06/65,808.24
  6. Step 6: Final answer
    x = 32,140.17

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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.