Home / 81,848.40-112,948.92-50,017.20

Finding the Fourth Proportional to 81,848.40, 112,948.92 and 50,017.20

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Solution

The fourth proportional to 81,848.40, 112,948.92 and 50,017.20 is: 69,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,848.40 : 112,948.92 = 50,017.20 : x
  2. Step 2: Convert to fraction form
    81,848.40/112,948.92 = 50,017.20/x
  3. Step 3: Cross multiply
    81,848.40x = 112,948.92 × 50,017.20
  4. Step 4: Simplify right side
    81,848.40x = 5,649,388,721.42
  5. Step 5: Solve for x
    x = 5,649,388,721.42/81,848.40
  6. Step 6: Final answer
    x = 69,022.59

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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.