Home / 81,163.48-112,005.36-45,353.53

Finding the Fourth Proportional to 81,163.48, 112,005.36 and 45,353.53

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Solution

The fourth proportional to 81,163.48, 112,005.36 and 45,353.53 is: 62,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,163.48 : 112,005.36 = 45,353.53 : x
  2. Step 2: Convert to fraction form
    81,163.48/112,005.36 = 45,353.53/x
  3. Step 3: Cross multiply
    81,163.48x = 112,005.36 × 45,353.53
  4. Step 4: Simplify right side
    81,163.48x = 5,079,838,454.92
  5. Step 5: Solve for x
    x = 5,079,838,454.92/81,163.48
  6. Step 6: Final answer
    x = 62,587.74

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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.