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Finding the Fourth Proportional to 85,670.96, 118,234.76 and 49,373.68

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Solution

The fourth proportional to 85,670.96, 118,234.76 and 49,373.68 is: 68,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,670.96 : 118,234.76 = 49,373.68 : x
  2. Step 2: Convert to fraction form
    85,670.96/118,234.76 = 49,373.68/x
  3. Step 3: Cross multiply
    85,670.96x = 118,234.76 × 49,373.68
  4. Step 4: Simplify right side
    85,670.96x = 5,837,685,205.12
  5. Step 5: Solve for x
    x = 5,837,685,205.12/85,670.96
  6. Step 6: Final answer
    x = 68,140.77

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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.