Home / 97,877.28-146,837.79-31,321.40

Finding the Fourth Proportional to 97,877.28, 146,837.79 and 31,321.40

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Solution

The fourth proportional to 97,877.28, 146,837.79 and 31,321.40 is: 46,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,877.28 : 146,837.79 = 31,321.40 : x
  2. Step 2: Convert to fraction form
    97,877.28/146,837.79 = 31,321.40/x
  3. Step 3: Cross multiply
    97,877.28x = 146,837.79 × 31,321.40
  4. Step 4: Simplify right side
    97,877.28x = 4,599,165,522.80
  5. Step 5: Solve for x
    x = 4,599,165,522.80/97,877.28
  6. Step 6: Final answer
    x = 46,989.10

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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.