Home / 85,271.32-117,645.78-49,448.26

Finding the Fourth Proportional to 85,271.32, 117,645.78 and 49,448.26

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Solution

The fourth proportional to 85,271.32, 117,645.78 and 49,448.26 is: 68,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271.32 : 117,645.78 = 49,448.26 : x
  2. Step 2: Convert to fraction form
    85,271.32/117,645.78 = 49,448.26/x
  3. Step 3: Cross multiply
    85,271.32x = 117,645.78 × 49,448.26
  4. Step 4: Simplify right side
    85,271.32x = 5,817,379,117.34
  5. Step 5: Solve for x
    x = 5,817,379,117.34/85,271.32
  6. Step 6: Final answer
    x = 68,221.99

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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.