Home / 45,349.18-68,046.81-20,384.20

Finding the Fourth Proportional to 45,349.18, 68,046.81 and 20,384.20

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Solution

The fourth proportional to 45,349.18, 68,046.81 and 20,384.20 is: 30,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,349.18 : 68,046.81 = 20,384.20 : x
  2. Step 2: Convert to fraction form
    45,349.18/68,046.81 = 20,384.20/x
  3. Step 3: Cross multiply
    45,349.18x = 68,046.81 × 20,384.20
  4. Step 4: Simplify right side
    45,349.18x = 1,387,079,784.40
  5. Step 5: Solve for x
    x = 1,387,079,784.40/45,349.18
  6. Step 6: Final answer
    x = 30,586.66

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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.