Home / 70,821.44-97,733.36-38,990.96

Finding the Fourth Proportional to 70,821.44, 97,733.36 and 38,990.96

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Solution

The fourth proportional to 70,821.44, 97,733.36 and 38,990.96 is: 53,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.44 : 97,733.36 = 38,990.96 : x
  2. Step 2: Convert to fraction form
    70,821.44/97,733.36 = 38,990.96/x
  3. Step 3: Cross multiply
    70,821.44x = 97,733.36 × 38,990.96
  4. Step 4: Simplify right side
    70,821.44x = 3,810,717,530.43
  5. Step 5: Solve for x
    x = 3,810,717,530.43/70,821.44
  6. Step 6: Final answer
    x = 53,807.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.