Home / 70,722.09-97,595.37-38,890.89

Finding the Fourth Proportional to 70,722.09, 97,595.37 and 38,890.89

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Solution

The fourth proportional to 70,722.09, 97,595.37 and 38,890.89 is: 53,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,722.09 : 97,595.37 = 38,890.89 : x
  2. Step 2: Convert to fraction form
    70,722.09/97,595.37 = 38,890.89/x
  3. Step 3: Cross multiply
    70,722.09x = 97,595.37 × 38,890.89
  4. Step 4: Simplify right side
    70,722.09x = 3,795,570,799.18
  5. Step 5: Solve for x
    x = 3,795,570,799.18/70,722.09
  6. Step 6: Final answer
    x = 53,668.82

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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.