Home / 92,828.22-139,216.80-45,418.92

Finding the Fourth Proportional to 92,828.22, 139,216.80 and 45,418.92

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Solution

The fourth proportional to 92,828.22, 139,216.80 and 45,418.92 is: 68,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,828.22 : 139,216.80 = 45,418.92 : x
  2. Step 2: Convert to fraction form
    92,828.22/139,216.80 = 45,418.92/x
  3. Step 3: Cross multiply
    92,828.22x = 139,216.80 × 45,418.92
  4. Step 4: Simplify right side
    92,828.22x = 6,323,076,701.86
  5. Step 5: Solve for x
    x = 6,323,076,701.86/92,828.22
  6. Step 6: Final answer
    x = 68,115.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.