Home / 69,805.13-96,323.78-39,580.79

Finding the Fourth Proportional to 69,805.13, 96,323.78 and 39,580.79

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Solution

The fourth proportional to 69,805.13, 96,323.78 and 39,580.79 is: 54,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,805.13 : 96,323.78 = 39,580.79 : x
  2. Step 2: Convert to fraction form
    69,805.13/96,323.78 = 39,580.79/x
  3. Step 3: Cross multiply
    69,805.13x = 96,323.78 × 39,580.79
  4. Step 4: Simplify right side
    69,805.13x = 3,812,570,925.52
  5. Step 5: Solve for x
    x = 3,812,570,925.52/69,805.13
  6. Step 6: Final answer
    x = 54,617.35

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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.