Home / 65,955.78-98,966.15-30,889.38

Finding the Fourth Proportional to 65,955.78, 98,966.15 and 30,889.38

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Solution

The fourth proportional to 65,955.78, 98,966.15 and 30,889.38 is: 46,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,955.78 : 98,966.15 = 30,889.38 : x
  2. Step 2: Convert to fraction form
    65,955.78/98,966.15 = 30,889.38/x
  3. Step 3: Cross multiply
    65,955.78x = 98,966.15 × 30,889.38
  4. Step 4: Simplify right side
    65,955.78x = 3,057,003,014.49
  5. Step 5: Solve for x
    x = 3,057,003,014.49/65,955.78
  6. Step 6: Final answer
    x = 46,349.28

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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.