Home / 56,311.27-77,709.56-30,817.64

Finding the Fourth Proportional to 56,311.27, 77,709.56 and 30,817.64

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Solution

The fourth proportional to 56,311.27, 77,709.56 and 30,817.64 is: 42,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,311.27 : 77,709.56 = 30,817.64 : x
  2. Step 2: Convert to fraction form
    56,311.27/77,709.56 = 30,817.64/x
  3. Step 3: Cross multiply
    56,311.27x = 77,709.56 × 30,817.64
  4. Step 4: Simplify right side
    56,311.27x = 2,394,825,284.82
  5. Step 5: Solve for x
    x = 2,394,825,284.82/56,311.27
  6. Step 6: Final answer
    x = 42,528.35

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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.