Home / 45,097.20-67,645.80-31,100.40

Finding the Fourth Proportional to 45,097.20, 67,645.80 and 31,100.40

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Solution

The fourth proportional to 45,097.20, 67,645.80 and 31,100.40 is: 46,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,097.20 : 67,645.80 = 31,100.40 : x
  2. Step 2: Convert to fraction form
    45,097.20/67,645.80 = 31,100.40/x
  3. Step 3: Cross multiply
    45,097.20x = 67,645.80 × 31,100.40
  4. Step 4: Simplify right side
    45,097.20x = 2,103,811,438.32
  5. Step 5: Solve for x
    x = 2,103,811,438.32/45,097.20
  6. Step 6: Final answer
    x = 46,650.60

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1.5x scale

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.