Home / 70,251.12-96,945.84-38,420.64

Finding the Fourth Proportional to 70,251.12, 96,945.84 and 38,420.64

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Solution

The fourth proportional to 70,251.12, 96,945.84 and 38,420.64 is: 53,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,251.12 : 96,945.84 = 38,420.64 : x
  2. Step 2: Convert to fraction form
    70,251.12/96,945.84 = 38,420.64/x
  3. Step 3: Cross multiply
    70,251.12x = 96,945.84 × 38,420.64
  4. Step 4: Simplify right side
    70,251.12x = 3,724,721,218.14
  5. Step 5: Solve for x
    x = 3,724,721,218.14/70,251.12
  6. Step 6: Final answer
    x = 53,020.10

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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.