Home / 64,394.20-96,591.30-31,139.80

Finding the Fourth Proportional to 64,394.20, 96,591.30 and 31,139.80

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Solution

The fourth proportional to 64,394.20, 96,591.30 and 31,139.80 is: 46,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,394.20 : 96,591.30 = 31,139.80 : x
  2. Step 2: Convert to fraction form
    64,394.20/96,591.30 = 31,139.80/x
  3. Step 3: Cross multiply
    64,394.20x = 96,591.30 × 31,139.80
  4. Step 4: Simplify right side
    64,394.20x = 3,007,833,763.74
  5. Step 5: Solve for x
    x = 3,007,833,763.74/64,394.20
  6. Step 6: Final answer
    x = 46,709.70

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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.