Home / 69,728.34-96,219.50-39,518.28

Finding the Fourth Proportional to 69,728.34, 96,219.50 and 39,518.28

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Solution

The fourth proportional to 69,728.34, 96,219.50 and 39,518.28 is: 54,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.34 : 96,219.50 = 39,518.28 : x
  2. Step 2: Convert to fraction form
    69,728.34/96,219.50 = 39,518.28/x
  3. Step 3: Cross multiply
    69,728.34x = 96,219.50 × 39,518.28
  4. Step 4: Simplify right side
    69,728.34x = 3,802,428,944.87
  5. Step 5: Solve for x
    x = 3,802,428,944.87/69,728.34
  6. Step 6: Final answer
    x = 54,532.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.