Home / 75,666.78-104,385.06-48,817.92

Finding the Fourth Proportional to 75,666.78, 104,385.06 and 48,817.92

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Solution

The fourth proportional to 75,666.78, 104,385.06 and 48,817.92 is: 67,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,666.78 : 104,385.06 = 48,817.92 : x
  2. Step 2: Convert to fraction form
    75,666.78/104,385.06 = 48,817.92/x
  3. Step 3: Cross multiply
    75,666.78x = 104,385.06 × 48,817.92
  4. Step 4: Simplify right side
    75,666.78x = 5,095,861,508.28
  5. Step 5: Solve for x
    x = 5,095,861,508.28/75,666.78
  6. Step 6: Final answer
    x = 67,346.09

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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.