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Finding the Fourth Proportional to 85,464.50, 117,920.88 and 49,633.25

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Solution

The fourth proportional to 85,464.50, 117,920.88 and 49,633.25 is: 68,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,464.50 : 117,920.88 = 49,633.25 : x
  2. Step 2: Convert to fraction form
    85,464.50/117,920.88 = 49,633.25/x
  3. Step 3: Cross multiply
    85,464.50x = 117,920.88 × 49,633.25
  4. Step 4: Simplify right side
    85,464.50x = 5,852,795,927.66
  5. Step 5: Solve for x
    x = 5,852,795,927.66/85,464.50
  6. Step 6: Final answer
    x = 68,482.19

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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.