Home / 45,816.40-68,724.60-39,984.40

Finding the Fourth Proportional to 45,816.40, 68,724.60 and 39,984.40

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Solution

The fourth proportional to 45,816.40, 68,724.60 and 39,984.40 is: 59,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,816.40 : 68,724.60 = 39,984.40 : x
  2. Step 2: Convert to fraction form
    45,816.40/68,724.60 = 39,984.40/x
  3. Step 3: Cross multiply
    45,816.40x = 68,724.60 × 39,984.40
  4. Step 4: Simplify right side
    45,816.40x = 2,747,911,896.24
  5. Step 5: Solve for x
    x = 2,747,911,896.24/45,816.40
  6. Step 6: Final answer
    x = 59,976.60

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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.