Home / 65,340.66-98,005.16-20,955.36

Finding the Fourth Proportional to 65,340.66, 98,005.16 and 20,955.36

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Solution

The fourth proportional to 65,340.66, 98,005.16 and 20,955.36 is: 31,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,340.66 : 98,005.16 = 20,955.36 : x
  2. Step 2: Convert to fraction form
    65,340.66/98,005.16 = 20,955.36/x
  3. Step 3: Cross multiply
    65,340.66x = 98,005.16 × 20,955.36
  4. Step 4: Simplify right side
    65,340.66x = 2,053,733,409.66
  5. Step 5: Solve for x
    x = 2,053,733,409.66/65,340.66
  6. Step 6: Final answer
    x = 31,431.17

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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.