Home / 56,107.13-77,429.45-30,958.25

Finding the Fourth Proportional to 56,107.13, 77,429.45 and 30,958.25

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Solution

The fourth proportional to 56,107.13, 77,429.45 and 30,958.25 is: 42,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,107.13 : 77,429.45 = 30,958.25 : x
  2. Step 2: Convert to fraction form
    56,107.13/77,429.45 = 30,958.25/x
  3. Step 3: Cross multiply
    56,107.13x = 77,429.45 × 30,958.25
  4. Step 4: Simplify right side
    56,107.13x = 2,397,079,960.71
  5. Step 5: Solve for x
    x = 2,397,079,960.71/56,107.13
  6. Step 6: Final answer
    x = 42,723.27

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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.