Home / 56,421.39-77,863.05-40,535.57

Finding the Fourth Proportional to 56,421.39, 77,863.05 and 40,535.57

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Solution

The fourth proportional to 56,421.39, 77,863.05 and 40,535.57 is: 55,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.39 : 77,863.05 = 40,535.57 : x
  2. Step 2: Convert to fraction form
    56,421.39/77,863.05 = 40,535.57/x
  3. Step 3: Cross multiply
    56,421.39x = 77,863.05 × 40,535.57
  4. Step 4: Simplify right side
    56,421.39x = 3,156,222,724.37
  5. Step 5: Solve for x
    x = 3,156,222,724.37/56,421.39
  6. Step 6: Final answer
    x = 55,940.18

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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.