Home / 56,109.38-77,430.94-30,958.88

Finding the Fourth Proportional to 56,109.38, 77,430.94 and 30,958.88

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Solution

The fourth proportional to 56,109.38, 77,430.94 and 30,958.88 is: 42,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,109.38 : 77,430.94 = 30,958.88 : x
  2. Step 2: Convert to fraction form
    56,109.38/77,430.94 = 30,958.88/x
  3. Step 3: Cross multiply
    56,109.38x = 77,430.94 × 30,958.88
  4. Step 4: Simplify right side
    56,109.38x = 2,397,174,715.20
  5. Step 5: Solve for x
    x = 2,397,174,715.20/56,109.38
  6. Step 6: Final answer
    x = 42,723.25

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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.