Home / 65,192.28-97,780.22-20,815.32

Finding the Fourth Proportional to 65,192.28, 97,780.22 and 20,815.32

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Solution

The fourth proportional to 65,192.28, 97,780.22 and 20,815.32 is: 31,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,192.28 : 97,780.22 = 20,815.32 : x
  2. Step 2: Convert to fraction form
    65,192.28/97,780.22 = 20,815.32/x
  3. Step 3: Cross multiply
    65,192.28x = 97,780.22 × 20,815.32
  4. Step 4: Simplify right side
    65,192.28x = 2,035,326,568.97
  5. Step 5: Solve for x
    x = 2,035,326,568.97/65,192.28
  6. Step 6: Final answer
    x = 31,220.36

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1.5x scale

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.