Home / 47,343.96-65,311.26-30,981.48

Finding the Fourth Proportional to 47,343.96, 65,311.26 and 30,981.48

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Solution

The fourth proportional to 47,343.96, 65,311.26 and 30,981.48 is: 42,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,343.96 : 65,311.26 = 30,981.48 : x
  2. Step 2: Convert to fraction form
    47,343.96/65,311.26 = 30,981.48/x
  3. Step 3: Cross multiply
    47,343.96x = 65,311.26 × 30,981.48
  4. Step 4: Simplify right side
    47,343.96x = 2,023,439,495.46
  5. Step 5: Solve for x
    x = 2,023,439,495.46/47,343.96
  6. Step 6: Final answer
    x = 42,739.13

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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.