Home / 65,616.60-98,440.48-21,243.36

Finding the Fourth Proportional to 65,616.60, 98,440.48 and 21,243.36

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Solution

The fourth proportional to 65,616.60, 98,440.48 and 21,243.36 is: 31,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,616.60 : 98,440.48 = 21,243.36 : x
  2. Step 2: Convert to fraction form
    65,616.60/98,440.48 = 21,243.36/x
  3. Step 3: Cross multiply
    65,616.60x = 98,440.48 × 21,243.36
  4. Step 4: Simplify right side
    65,616.60x = 2,091,206,555.21
  5. Step 5: Solve for x
    x = 2,091,206,555.21/65,616.60
  6. Step 6: Final answer
    x = 31,870.08

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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.