Home / 45,723.40-68,585.10-28,136.20

Finding the Fourth Proportional to 45,723.40, 68,585.10 and 28,136.20

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Solution

The fourth proportional to 45,723.40, 68,585.10 and 28,136.20 is: 42,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,723.40 : 68,585.10 = 28,136.20 : x
  2. Step 2: Convert to fraction form
    45,723.40/68,585.10 = 28,136.20/x
  3. Step 3: Cross multiply
    45,723.40x = 68,585.10 × 28,136.20
  4. Step 4: Simplify right side
    45,723.40x = 1,929,724,090.62
  5. Step 5: Solve for x
    x = 1,929,724,090.62/45,723.40
  6. Step 6: Final answer
    x = 42,204.30

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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.