Home / 85,108.86-117,464.45-49,320.63

Finding the Fourth Proportional to 85,108.86, 117,464.45 and 49,320.63

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Solution

The fourth proportional to 85,108.86, 117,464.45 and 49,320.63 is: 68,070.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,108.86 : 117,464.45 = 49,320.63 : x
  2. Step 2: Convert to fraction form
    85,108.86/117,464.45 = 49,320.63/x
  3. Step 3: Cross multiply
    85,108.86x = 117,464.45 × 49,320.63
  4. Step 4: Simplify right side
    85,108.86x = 5,793,420,430.00
  5. Step 5: Solve for x
    x = 5,793,420,430.00/85,108.86
  6. Step 6: Final answer
    x = 68,070.71

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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.