Home / 93,778.19-129,387.41-55,520.94

Finding the Fourth Proportional to 93,778.19, 129,387.41 and 55,520.94

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Solution

The fourth proportional to 93,778.19, 129,387.41 and 55,520.94 is: 76,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,778.19 : 129,387.41 = 55,520.94 : x
  2. Step 2: Convert to fraction form
    93,778.19/129,387.41 = 55,520.94/x
  3. Step 3: Cross multiply
    93,778.19x = 129,387.41 × 55,520.94
  4. Step 4: Simplify right side
    93,778.19x = 7,183,711,043.17
  5. Step 5: Solve for x
    x = 7,183,711,043.17/93,778.19
  6. Step 6: Final answer
    x = 76,603.22

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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.