Home / 69,718.20-96,210.85-39,509.28

Finding the Fourth Proportional to 69,718.20, 96,210.85 and 39,509.28

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Solution

The fourth proportional to 69,718.20, 96,210.85 and 39,509.28 is: 54,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,718.20 : 96,210.85 = 39,509.28 : x
  2. Step 2: Convert to fraction form
    69,718.20/96,210.85 = 39,509.28/x
  3. Step 3: Cross multiply
    69,718.20x = 96,210.85 × 39,509.28
  4. Step 4: Simplify right side
    69,718.20x = 3,801,221,005.28
  5. Step 5: Solve for x
    x = 3,801,221,005.28/69,718.20
  6. Step 6: Final answer
    x = 54,522.65

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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.