Home / 98,781.48-136,297.44-58,507.92

Finding the Fourth Proportional to 98,781.48, 136,297.44 and 58,507.92

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Solution

The fourth proportional to 98,781.48, 136,297.44 and 58,507.92 is: 80,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,781.48 : 136,297.44 = 58,507.92 : x
  2. Step 2: Convert to fraction form
    98,781.48/136,297.44 = 58,507.92/x
  3. Step 3: Cross multiply
    98,781.48x = 136,297.44 × 58,507.92
  4. Step 4: Simplify right side
    98,781.48x = 7,974,479,715.72
  5. Step 5: Solve for x
    x = 7,974,479,715.72/98,781.48
  6. Step 6: Final answer
    x = 80,728.49

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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.