Home / 70,421.09-97,183.46-38,589.71

Finding the Fourth Proportional to 70,421.09, 97,183.46 and 38,589.71

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Solution

The fourth proportional to 70,421.09, 97,183.46 and 38,589.71 is: 53,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,421.09 : 97,183.46 = 38,589.71 : x
  2. Step 2: Convert to fraction form
    70,421.09/97,183.46 = 38,589.71/x
  3. Step 3: Cross multiply
    70,421.09x = 97,183.46 × 38,589.71
  4. Step 4: Simplify right side
    70,421.09x = 3,750,281,538.20
  5. Step 5: Solve for x
    x = 3,750,281,538.20/70,421.09
  6. Step 6: Final answer
    x = 53,255.09

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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.