Home / 66,078.48-91,189.66-37,398.14

Finding the Fourth Proportional to 66,078.48, 91,189.66 and 37,398.14

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Solution

The fourth proportional to 66,078.48, 91,189.66 and 37,398.14 is: 51,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,078.48 : 91,189.66 = 37,398.14 : x
  2. Step 2: Convert to fraction form
    66,078.48/91,189.66 = 37,398.14/x
  3. Step 3: Cross multiply
    66,078.48x = 91,189.66 × 37,398.14
  4. Step 4: Simplify right side
    66,078.48x = 3,410,323,671.23
  5. Step 5: Solve for x
    x = 3,410,323,671.23/66,078.48
  6. Step 6: Final answer
    x = 51,610.20

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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.