Home / 79,398.47-109,570.07-43,590.78

Finding the Fourth Proportional to 79,398.47, 109,570.07 and 43,590.78

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Solution

The fourth proportional to 79,398.47, 109,570.07 and 43,590.78 is: 60,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,398.47 : 109,570.07 = 43,590.78 : x
  2. Step 2: Convert to fraction form
    79,398.47/109,570.07 = 43,590.78/x
  3. Step 3: Cross multiply
    79,398.47x = 109,570.07 × 43,590.78
  4. Step 4: Simplify right side
    79,398.47x = 4,776,244,987.90
  5. Step 5: Solve for x
    x = 4,776,244,987.90/79,398.47
  6. Step 6: Final answer
    x = 60,155.38

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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.