Home / 56,749.20-78,312.93-31,257.95

Finding the Fourth Proportional to 56,749.20, 78,312.93 and 31,257.95

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Solution

The fourth proportional to 56,749.20, 78,312.93 and 31,257.95 is: 43,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,749.20 : 78,312.93 = 31,257.95 : x
  2. Step 2: Convert to fraction form
    56,749.20/78,312.93 = 31,257.95/x
  3. Step 3: Cross multiply
    56,749.20x = 78,312.93 × 31,257.95
  4. Step 4: Simplify right side
    56,749.20x = 2,447,901,449.68
  5. Step 5: Solve for x
    x = 2,447,901,449.68/56,749.20
  6. Step 6: Final answer
    x = 43,135.44

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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.