Home / 70,387.20-97,135.74-38,556.14

Finding the Fourth Proportional to 70,387.20, 97,135.74 and 38,556.14

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Solution

The fourth proportional to 70,387.20, 97,135.74 and 38,556.14 is: 53,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.20 : 97,135.74 = 38,556.14 : x
  2. Step 2: Convert to fraction form
    70,387.20/97,135.74 = 38,556.14/x
  3. Step 3: Cross multiply
    70,387.20x = 97,135.74 × 38,556.14
  4. Step 4: Simplify right side
    70,387.20x = 3,745,178,704.76
  5. Step 5: Solve for x
    x = 3,745,178,704.76/70,387.20
  6. Step 6: Final answer
    x = 53,208.24

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1.5x scale

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.