Home / 72,919.18-109,313.16-26,161.12

Finding the Fourth Proportional to 72,919.18, 109,313.16 and 26,161.12

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Solution

The fourth proportional to 72,919.18, 109,313.16 and 26,161.12 is: 39,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,919.18 : 109,313.16 = 26,161.12 : x
  2. Step 2: Convert to fraction form
    72,919.18/109,313.16 = 26,161.12/x
  3. Step 3: Cross multiply
    72,919.18x = 109,313.16 × 26,161.12
  4. Step 4: Simplify right side
    72,919.18x = 2,859,754,696.34
  5. Step 5: Solve for x
    x = 2,859,754,696.34/72,919.18
  6. Step 6: Final answer
    x = 39,218.14

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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.