Home / 85,440.50-117,901.25-49,624.66

Finding the Fourth Proportional to 85,440.50, 117,901.25 and 49,624.66

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Solution

The fourth proportional to 85,440.50, 117,901.25 and 49,624.66 is: 68,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,440.50 : 117,901.25 = 49,624.66 : x
  2. Step 2: Convert to fraction form
    85,440.50/117,901.25 = 49,624.66/x
  3. Step 3: Cross multiply
    85,440.50x = 117,901.25 × 49,624.66
  4. Step 4: Simplify right side
    85,440.50x = 5,850,809,444.83
  5. Step 5: Solve for x
    x = 5,850,809,444.83/85,440.50
  6. Step 6: Final answer
    x = 68,478.17

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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.