Home / 65,484.82-98,240.88-21,116.05

Finding the Fourth Proportional to 65,484.82, 98,240.88 and 21,116.05

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Solution

The fourth proportional to 65,484.82, 98,240.88 and 21,116.05 is: 31,678.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.82 : 98,240.88 = 21,116.05 : x
  2. Step 2: Convert to fraction form
    65,484.82/98,240.88 = 21,116.05/x
  3. Step 3: Cross multiply
    65,484.82x = 98,240.88 × 21,116.05
  4. Step 4: Simplify right side
    65,484.82x = 2,074,459,334.12
  5. Step 5: Solve for x
    x = 2,074,459,334.12/65,484.82
  6. Step 6: Final answer
    x = 31,678.48

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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.