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Finding the Fourth Proportional to 87,330.70, 131,053.65 and 31,926.70

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Solution

The fourth proportional to 87,330.70, 131,053.65 and 31,926.70 is: 47,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.70 : 131,053.65 = 31,926.70 : x
  2. Step 2: Convert to fraction form
    87,330.70/131,053.65 = 31,926.70/x
  3. Step 3: Cross multiply
    87,330.70x = 131,053.65 × 31,926.70
  4. Step 4: Simplify right side
    87,330.70x = 4,184,110,567.46
  5. Step 5: Solve for x
    x = 4,184,110,567.46/87,330.70
  6. Step 6: Final answer
    x = 47,911.11

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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.