Home / 85,484.52-128,241.54-38,116.44

Finding the Fourth Proportional to 85,484.52, 128,241.54 and 38,116.44

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Solution

The fourth proportional to 85,484.52, 128,241.54 and 38,116.44 is: 57,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,484.52 : 128,241.54 = 38,116.44 : x
  2. Step 2: Convert to fraction form
    85,484.52/128,241.54 = 38,116.44/x
  3. Step 3: Cross multiply
    85,484.52x = 128,241.54 × 38,116.44
  4. Step 4: Simplify right side
    85,484.52x = 4,888,110,964.92
  5. Step 5: Solve for x
    x = 4,888,110,964.92/85,484.52
  6. Step 6: Final answer
    x = 57,181.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.