Home / 45,807.30-68,720.76-14,216.70

Finding the Fourth Proportional to 45,807.30, 68,720.76 and 14,216.70

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Solution

The fourth proportional to 45,807.30, 68,720.76 and 14,216.70 is: 21,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,807.30 : 68,720.76 = 14,216.70 : x
  2. Step 2: Convert to fraction form
    45,807.30/68,720.76 = 14,216.70/x
  3. Step 3: Cross multiply
    45,807.30x = 68,720.76 × 14,216.70
  4. Step 4: Simplify right side
    45,807.30x = 976,982,428.69
  5. Step 5: Solve for x
    x = 976,982,428.69/45,807.30
  6. Step 6: Final answer
    x = 21,328.09

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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.