Home / 70,720.38-97,596.64-38,891.70

Finding the Fourth Proportional to 70,720.38, 97,596.64 and 38,891.70

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Solution

The fourth proportional to 70,720.38, 97,596.64 and 38,891.70 is: 53,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,720.38 : 97,596.64 = 38,891.70 : x
  2. Step 2: Convert to fraction form
    70,720.38/97,596.64 = 38,891.70/x
  3. Step 3: Cross multiply
    70,720.38x = 97,596.64 × 38,891.70
  4. Step 4: Simplify right side
    70,720.38x = 3,795,699,243.89
  5. Step 5: Solve for x
    x = 3,795,699,243.89/70,720.38
  6. Step 6: Final answer
    x = 53,671.93

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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.