Home / 45,386.70-68,082.29-12,107.07

Finding the Fourth Proportional to 45,386.70, 68,082.29 and 12,107.07

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Solution

The fourth proportional to 45,386.70, 68,082.29 and 12,107.07 is: 18,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,386.70 : 68,082.29 = 12,107.07 : x
  2. Step 2: Convert to fraction form
    45,386.70/68,082.29 = 12,107.07/x
  3. Step 3: Cross multiply
    45,386.70x = 68,082.29 × 12,107.07
  4. Step 4: Simplify right side
    45,386.70x = 824,276,990.25
  5. Step 5: Solve for x
    x = 824,276,990.25/45,386.70
  6. Step 6: Final answer
    x = 18,161.20

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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.