Home / 88,720.86-122,434.50-48,435.12

Finding the Fourth Proportional to 88,720.86, 122,434.50 and 48,435.12

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Solution

The fourth proportional to 88,720.86, 122,434.50 and 48,435.12 is: 66,840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,720.86 : 122,434.50 = 48,435.12 : x
  2. Step 2: Convert to fraction form
    88,720.86/122,434.50 = 48,435.12/x
  3. Step 3: Cross multiply
    88,720.86x = 122,434.50 × 48,435.12
  4. Step 4: Simplify right side
    88,720.86x = 5,930,129,699.64
  5. Step 5: Solve for x
    x = 5,930,129,699.64/88,720.86
  6. Step 6: Final answer
    x = 66,840.31

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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.