Home / 85,632.48-118,285.77-65,735.24

Finding the Fourth Proportional to 85,632.48, 118,285.77 and 65,735.24

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Solution

The fourth proportional to 85,632.48, 118,285.77 and 65,735.24 is: 90,801.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,632.48 : 118,285.77 = 65,735.24 : x
  2. Step 2: Convert to fraction form
    85,632.48/118,285.77 = 65,735.24/x
  3. Step 3: Cross multiply
    85,632.48x = 118,285.77 × 65,735.24
  4. Step 4: Simplify right side
    85,632.48x = 7,775,542,888.11
  5. Step 5: Solve for x
    x = 7,775,542,888.11/85,632.48
  6. Step 6: Final answer
    x = 90,801.33

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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.