Home / 56,408.49-77,847.35-31,259.61

Finding the Fourth Proportional to 56,408.49, 77,847.35 and 31,259.61

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Solution

The fourth proportional to 56,408.49, 77,847.35 and 31,259.61 is: 43,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,408.49 : 77,847.35 = 31,259.61 : x
  2. Step 2: Convert to fraction form
    56,408.49/77,847.35 = 31,259.61/x
  3. Step 3: Cross multiply
    56,408.49x = 77,847.35 × 31,259.61
  4. Step 4: Simplify right side
    56,408.49x = 2,433,477,644.24
  5. Step 5: Solve for x
    x = 2,433,477,644.24/56,408.49
  6. Step 6: Final answer
    x = 43,140.27

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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.