Home / 92,876.83-128,170.05-50,435.36

Finding the Fourth Proportional to 92,876.83, 128,170.05 and 50,435.36

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Solution

The fourth proportional to 92,876.83, 128,170.05 and 50,435.36 is: 69,600.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,876.83 : 128,170.05 = 50,435.36 : x
  2. Step 2: Convert to fraction form
    92,876.83/128,170.05 = 50,435.36/x
  3. Step 3: Cross multiply
    92,876.83x = 128,170.05 × 50,435.36
  4. Step 4: Simplify right side
    92,876.83x = 6,464,302,263.62
  5. Step 5: Solve for x
    x = 6,464,302,263.62/92,876.83
  6. Step 6: Final answer
    x = 69,600.81

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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.