Home / 85,010.16-127,398.60-53,789.52

Finding the Fourth Proportional to 85,010.16, 127,398.60 and 53,789.52

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Solution

The fourth proportional to 85,010.16, 127,398.60 and 53,789.52 is: 80,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,010.16 : 127,398.60 = 53,789.52 : x
  2. Step 2: Convert to fraction form
    85,010.16/127,398.60 = 53,789.52/x
  3. Step 3: Cross multiply
    85,010.16x = 127,398.60 × 53,789.52
  4. Step 4: Simplify right side
    85,010.16x = 6,852,709,542.67
  5. Step 5: Solve for x
    x = 6,852,709,542.67/85,010.16
  6. Step 6: Final answer
    x = 80,610.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.