Home / 56,107.50-77,429.43-30,956.46

Finding the Fourth Proportional to 56,107.50, 77,429.43 and 30,956.46

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Solution

The fourth proportional to 56,107.50, 77,429.43 and 30,956.46 is: 42,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,107.50 : 77,429.43 = 30,956.46 : x
  2. Step 2: Convert to fraction form
    56,107.50/77,429.43 = 30,956.46/x
  3. Step 3: Cross multiply
    56,107.50x = 77,429.43 × 30,956.46
  4. Step 4: Simplify right side
    56,107.50x = 2,396,941,052.62
  5. Step 5: Solve for x
    x = 2,396,941,052.62/56,107.50
  6. Step 6: Final answer
    x = 42,720.51

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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.