Home / 56,703.27-78,255.38-31,214.68

Finding the Fourth Proportional to 56,703.27, 78,255.38 and 31,214.68

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Solution

The fourth proportional to 56,703.27, 78,255.38 and 31,214.68 is: 43,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,703.27 : 78,255.38 = 31,214.68 : x
  2. Step 2: Convert to fraction form
    56,703.27/78,255.38 = 31,214.68/x
  3. Step 3: Cross multiply
    56,703.27x = 78,255.38 × 31,214.68
  4. Step 4: Simplify right side
    56,703.27x = 2,442,716,644.98
  5. Step 5: Solve for x
    x = 2,442,716,644.98/56,703.27
  6. Step 6: Final answer
    x = 43,078.94

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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.