Home / 70,776.18-97,668.69-38,942.10

Finding the Fourth Proportional to 70,776.18, 97,668.69 and 38,942.10

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Solution

The fourth proportional to 70,776.18, 97,668.69 and 38,942.10 is: 53,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,776.18 : 97,668.69 = 38,942.10 : x
  2. Step 2: Convert to fraction form
    70,776.18/97,668.69 = 38,942.10/x
  3. Step 3: Cross multiply
    70,776.18x = 97,668.69 × 38,942.10
  4. Step 4: Simplify right side
    70,776.18x = 3,803,423,892.85
  5. Step 5: Solve for x
    x = 3,803,423,892.85/70,776.18
  6. Step 6: Final answer
    x = 53,738.76

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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.