Home / 65,474.04-98,217.12-21,090.36

Finding the Fourth Proportional to 65,474.04, 98,217.12 and 21,090.36

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Solution

The fourth proportional to 65,474.04, 98,217.12 and 21,090.36 is: 31,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,474.04 : 98,217.12 = 21,090.36 : x
  2. Step 2: Convert to fraction form
    65,474.04/98,217.12 = 21,090.36/x
  3. Step 3: Cross multiply
    65,474.04x = 98,217.12 × 21,090.36
  4. Step 4: Simplify right side
    65,474.04x = 2,071,434,418.96
  5. Step 5: Solve for x
    x = 2,071,434,418.96/65,474.04
  6. Step 6: Final answer
    x = 31,637.49

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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.