Home / 85,504.24-117,995.40-47,778.16

Finding the Fourth Proportional to 85,504.24, 117,995.40 and 47,778.16

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Solution

The fourth proportional to 85,504.24, 117,995.40 and 47,778.16 is: 65,933.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,504.24 : 117,995.40 = 47,778.16 : x
  2. Step 2: Convert to fraction form
    85,504.24/117,995.40 = 47,778.16/x
  3. Step 3: Cross multiply
    85,504.24x = 117,995.40 × 47,778.16
  4. Step 4: Simplify right side
    85,504.24x = 5,637,603,100.46
  5. Step 5: Solve for x
    x = 5,637,603,100.46/85,504.24
  6. Step 6: Final answer
    x = 65,933.61

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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.