Home / 47,621.84-65,646.60-31,672.40

Finding the Fourth Proportional to 47,621.84, 65,646.60 and 31,672.40

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Solution

The fourth proportional to 47,621.84, 65,646.60 and 31,672.40 is: 43,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,621.84 : 65,646.60 = 31,672.40 : x
  2. Step 2: Convert to fraction form
    47,621.84/65,646.60 = 31,672.40/x
  3. Step 3: Cross multiply
    47,621.84x = 65,646.60 × 31,672.40
  4. Step 4: Simplify right side
    47,621.84x = 2,079,185,373.84
  5. Step 5: Solve for x
    x = 2,079,185,373.84/47,621.84
  6. Step 6: Final answer
    x = 43,660.33

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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.