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Finding the Fourth Proportional to 85,597.56, 118,166.04 and 56,964.87

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Solution

The fourth proportional to 85,597.56, 118,166.04 and 56,964.87 is: 78,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.56 : 118,166.04 = 56,964.87 : x
  2. Step 2: Convert to fraction form
    85,597.56/118,166.04 = 56,964.87/x
  3. Step 3: Cross multiply
    85,597.56x = 118,166.04 × 56,964.87
  4. Step 4: Simplify right side
    85,597.56x = 6,731,313,107.01
  5. Step 5: Solve for x
    x = 6,731,313,107.01/85,597.56
  6. Step 6: Final answer
    x = 78,639.08

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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.