Home / 87,611.40-120,903.65-47,325.14

Finding the Fourth Proportional to 87,611.40, 120,903.65 and 47,325.14

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Solution

The fourth proportional to 87,611.40, 120,903.65 and 47,325.14 is: 65,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,611.40 : 120,903.65 = 47,325.14 : x
  2. Step 2: Convert to fraction form
    87,611.40/120,903.65 = 47,325.14/x
  3. Step 3: Cross multiply
    87,611.40x = 120,903.65 × 47,325.14
  4. Step 4: Simplify right side
    87,611.40x = 5,721,782,499.46
  5. Step 5: Solve for x
    x = 5,721,782,499.46/87,611.40
  6. Step 6: Final answer
    x = 65,308.65

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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.