Home / 47,646.23-65,722.05-30,672.68

Finding the Fourth Proportional to 47,646.23, 65,722.05 and 30,672.68

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Solution

The fourth proportional to 47,646.23, 65,722.05 and 30,672.68 is: 42,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,646.23 : 65,722.05 = 30,672.68 : x
  2. Step 2: Convert to fraction form
    47,646.23/65,722.05 = 30,672.68/x
  3. Step 3: Cross multiply
    47,646.23x = 65,722.05 × 30,672.68
  4. Step 4: Simplify right side
    47,646.23x = 2,015,871,079.98
  5. Step 5: Solve for x
    x = 2,015,871,079.98/47,646.23
  6. Step 6: Final answer
    x = 42,309.15

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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.