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Finding the Fourth Proportional to 90,658.78, 136,015.34 and 36,595.63

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Solution

The fourth proportional to 90,658.78, 136,015.34 and 36,595.63 is: 54,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658.78 : 136,015.34 = 36,595.63 : x
  2. Step 2: Convert to fraction form
    90,658.78/136,015.34 = 36,595.63/x
  3. Step 3: Cross multiply
    90,658.78x = 136,015.34 × 36,595.63
  4. Step 4: Simplify right side
    90,658.78x = 4,977,566,911.49
  5. Step 5: Solve for x
    x = 4,977,566,911.49/90,658.78
  6. Step 6: Final answer
    x = 54,904.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.