Home / 56,408.18-77,844.85-31,257.68

Finding the Fourth Proportional to 56,408.18, 77,844.85 and 31,257.68

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Solution

The fourth proportional to 56,408.18, 77,844.85 and 31,257.68 is: 43,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,408.18 : 77,844.85 = 31,257.68 : x
  2. Step 2: Convert to fraction form
    56,408.18/77,844.85 = 31,257.68/x
  3. Step 3: Cross multiply
    56,408.18x = 77,844.85 × 31,257.68
  4. Step 4: Simplify right side
    56,408.18x = 2,433,248,943.58
  5. Step 5: Solve for x
    x = 2,433,248,943.58/56,408.18
  6. Step 6: Final answer
    x = 43,136.46

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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.