Home / 65,319.48-90,140.46-35,511.48

Finding the Fourth Proportional to 65,319.48, 90,140.46 and 35,511.48

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Solution

The fourth proportional to 65,319.48, 90,140.46 and 35,511.48 is: 49,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,319.48 : 90,140.46 = 35,511.48 : x
  2. Step 2: Convert to fraction form
    65,319.48/90,140.46 = 35,511.48/x
  3. Step 3: Cross multiply
    65,319.48x = 90,140.46 × 35,511.48
  4. Step 4: Simplify right side
    65,319.48x = 3,201,021,142.48
  5. Step 5: Solve for x
    x = 3,201,021,142.48/65,319.48
  6. Step 6: Final answer
    x = 49,005.61

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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.