Home / 81,540.73-112,533.76-47,560.21

Finding the Fourth Proportional to 81,540.73, 112,533.76 and 47,560.21

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Solution

The fourth proportional to 81,540.73, 112,533.76 and 47,560.21 is: 65,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.73 : 112,533.76 = 47,560.21 : x
  2. Step 2: Convert to fraction form
    81,540.73/112,533.76 = 47,560.21/x
  3. Step 3: Cross multiply
    81,540.73x = 112,533.76 × 47,560.21
  4. Step 4: Simplify right side
    81,540.73x = 5,352,129,401.28
  5. Step 5: Solve for x
    x = 5,352,129,401.28/81,540.73
  6. Step 6: Final answer
    x = 65,637.50

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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.