Home / 45,777.20-68,639.07-19,468.40

Finding the Fourth Proportional to 45,777.20, 68,639.07 and 19,468.40

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Solution

The fourth proportional to 45,777.20, 68,639.07 and 19,468.40 is: 29,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,777.20 : 68,639.07 = 19,468.40 : x
  2. Step 2: Convert to fraction form
    45,777.20/68,639.07 = 19,468.40/x
  3. Step 3: Cross multiply
    45,777.20x = 68,639.07 × 19,468.40
  4. Step 4: Simplify right side
    45,777.20x = 1,336,292,870.39
  5. Step 5: Solve for x
    x = 1,336,292,870.39/45,777.20
  6. Step 6: Final answer
    x = 29,191.23

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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.