Home / 66,140.54-91,238.95-41,898.73

Finding the Fourth Proportional to 66,140.54, 91,238.95 and 41,898.73

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Solution

The fourth proportional to 66,140.54, 91,238.95 and 41,898.73 is: 57,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.54 : 91,238.95 = 41,898.73 : x
  2. Step 2: Convert to fraction form
    66,140.54/91,238.95 = 41,898.73/x
  3. Step 3: Cross multiply
    66,140.54x = 91,238.95 × 41,898.73
  4. Step 4: Simplify right side
    66,140.54x = 3,822,795,798.69
  5. Step 5: Solve for x
    x = 3,822,795,798.69/66,140.54
  6. Step 6: Final answer
    x = 57,798.08

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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.