Home / 56,622.44-78,140.48-31,129.88

Finding the Fourth Proportional to 56,622.44, 78,140.48 and 31,129.88

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Solution

The fourth proportional to 56,622.44, 78,140.48 and 31,129.88 is: 42,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,622.44 : 78,140.48 = 31,129.88 : x
  2. Step 2: Convert to fraction form
    56,622.44/78,140.48 = 31,129.88/x
  3. Step 3: Cross multiply
    56,622.44x = 78,140.48 × 31,129.88
  4. Step 4: Simplify right side
    56,622.44x = 2,432,503,580.57
  5. Step 5: Solve for x
    x = 2,432,503,580.57/56,622.44
  6. Step 6: Final answer
    x = 42,960.07

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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.