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Finding the Fourth Proportional to 85,885.56, 118,522.98 and 48,159

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Solution

The fourth proportional to 85,885.56, 118,522.98 and 48,159 is: 66,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,885.56 : 118,522.98 = 48,159 : x
  2. Step 2: Convert to fraction form
    85,885.56/118,522.98 = 48,159/x
  3. Step 3: Cross multiply
    85,885.56x = 118,522.98 × 48,159
  4. Step 4: Simplify right side
    85,885.56x = 5,707,948,193.82
  5. Step 5: Solve for x
    x = 5,707,948,193.82/85,885.56
  6. Step 6: Final answer
    x = 66,459.93

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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.