Home / 85,181.48-117,488.04-56,449.16

Finding the Fourth Proportional to 85,181.48, 117,488.04 and 56,449.16

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Solution

The fourth proportional to 85,181.48, 117,488.04 and 56,449.16 is: 77,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,181.48 : 117,488.04 = 56,449.16 : x
  2. Step 2: Convert to fraction form
    85,181.48/117,488.04 = 56,449.16/x
  3. Step 3: Cross multiply
    85,181.48x = 117,488.04 × 56,449.16
  4. Step 4: Simplify right side
    85,181.48x = 6,632,101,168.05
  5. Step 5: Solve for x
    x = 6,632,101,168.05/85,181.48
  6. Step 6: Final answer
    x = 77,858.49

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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.