Home / 56,716.39-78,267.24-31,222.55

Finding the Fourth Proportional to 56,716.39, 78,267.24 and 31,222.55

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Solution

The fourth proportional to 56,716.39, 78,267.24 and 31,222.55 is: 43,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.39 : 78,267.24 = 31,222.55 : x
  2. Step 2: Convert to fraction form
    56,716.39/78,267.24 = 31,222.55/x
  3. Step 3: Cross multiply
    56,716.39x = 78,267.24 × 31,222.55
  4. Step 4: Simplify right side
    56,716.39x = 2,443,703,009.93
  5. Step 5: Solve for x
    x = 2,443,703,009.93/56,716.39
  6. Step 6: Final answer
    x = 43,086.36

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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.