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Finding the Fourth Proportional to 85,298.62, 117,712.30 and 47,575.30

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Solution

The fourth proportional to 85,298.62, 117,712.30 and 47,575.30 is: 65,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,298.62 : 117,712.30 = 47,575.30 : x
  2. Step 2: Convert to fraction form
    85,298.62/117,712.30 = 47,575.30/x
  3. Step 3: Cross multiply
    85,298.62x = 117,712.30 × 47,575.30
  4. Step 4: Simplify right side
    85,298.62x = 5,600,197,986.19
  5. Step 5: Solve for x
    x = 5,600,197,986.19/85,298.62
  6. Step 6: Final answer
    x = 65,654.03

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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.