Home / 56,771.54-78,343.71-31,620.50

Finding the Fourth Proportional to 56,771.54, 78,343.71 and 31,620.50

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Solution

The fourth proportional to 56,771.54, 78,343.71 and 31,620.50 is: 43,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771.54 : 78,343.71 = 31,620.50 : x
  2. Step 2: Convert to fraction form
    56,771.54/78,343.71 = 31,620.50/x
  3. Step 3: Cross multiply
    56,771.54x = 78,343.71 × 31,620.50
  4. Step 4: Simplify right side
    56,771.54x = 2,477,267,282.06
  5. Step 5: Solve for x
    x = 2,477,267,282.06/56,771.54
  6. Step 6: Final answer
    x = 43,635.72

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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.