Home / 92,778.18-128,026.10-54,538.94

Finding the Fourth Proportional to 92,778.18, 128,026.10 and 54,538.94

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Solution

The fourth proportional to 92,778.18, 128,026.10 and 54,538.94 is: 75,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,778.18 : 128,026.10 = 54,538.94 : x
  2. Step 2: Convert to fraction form
    92,778.18/128,026.10 = 54,538.94/x
  3. Step 3: Cross multiply
    92,778.18x = 128,026.10 × 54,538.94
  4. Step 4: Simplify right side
    92,778.18x = 6,982,407,786.33
  5. Step 5: Solve for x
    x = 6,982,407,786.33/92,778.18
  6. Step 6: Final answer
    x = 75,259.16

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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.