Home / 70,828.06-97,742.78-38,996.96

Finding the Fourth Proportional to 70,828.06, 97,742.78 and 38,996.96

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Solution

The fourth proportional to 70,828.06, 97,742.78 and 38,996.96 is: 53,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,828.06 : 97,742.78 = 38,996.96 : x
  2. Step 2: Convert to fraction form
    70,828.06/97,742.78 = 38,996.96/x
  3. Step 3: Cross multiply
    70,828.06x = 97,742.78 × 38,996.96
  4. Step 4: Simplify right side
    70,828.06x = 3,811,671,281.95
  5. Step 5: Solve for x
    x = 3,811,671,281.95/70,828.06
  6. Step 6: Final answer
    x = 53,815.84

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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.