Home / 45,127.79-67,693.26-21,423.12

Finding the Fourth Proportional to 45,127.79, 67,693.26 and 21,423.12

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Solution

The fourth proportional to 45,127.79, 67,693.26 and 21,423.12 is: 32,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,127.79 : 67,693.26 = 21,423.12 : x
  2. Step 2: Convert to fraction form
    45,127.79/67,693.26 = 21,423.12/x
  3. Step 3: Cross multiply
    45,127.79x = 67,693.26 × 21,423.12
  4. Step 4: Simplify right side
    45,127.79x = 1,450,200,832.17
  5. Step 5: Solve for x
    x = 1,450,200,832.17/45,127.79
  6. Step 6: Final answer
    x = 32,135.43

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Double scale
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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.