Home / 85,632.15-118,170.68-47,389.48

Finding the Fourth Proportional to 85,632.15, 118,170.68 and 47,389.48

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Solution

The fourth proportional to 85,632.15, 118,170.68 and 47,389.48 is: 65,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,632.15 : 118,170.68 = 47,389.48 : x
  2. Step 2: Convert to fraction form
    85,632.15/118,170.68 = 47,389.48/x
  3. Step 3: Cross multiply
    85,632.15x = 118,170.68 × 47,389.48
  4. Step 4: Simplify right side
    85,632.15x = 5,600,046,544.07
  5. Step 5: Solve for x
    x = 5,600,046,544.07/85,632.15
  6. Step 6: Final answer
    x = 65,396.54

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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.