Home / 57,108.06-78,772.56-45,804.68

Finding the Fourth Proportional to 57,108.06, 78,772.56 and 45,804.68

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Solution

The fourth proportional to 57,108.06, 78,772.56 and 45,804.68 is: 63,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,108.06 : 78,772.56 = 45,804.68 : x
  2. Step 2: Convert to fraction form
    57,108.06/78,772.56 = 45,804.68/x
  3. Step 3: Cross multiply
    57,108.06x = 78,772.56 × 45,804.68
  4. Step 4: Simplify right side
    57,108.06x = 3,608,151,903.58
  5. Step 5: Solve for x
    x = 3,608,151,903.58/57,108.06
  6. Step 6: Final answer
    x = 63,181.13

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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.