Home / 81,565.45-112,559.63-45,754.67

Finding the Fourth Proportional to 81,565.45, 112,559.63 and 45,754.67

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Solution

The fourth proportional to 81,565.45, 112,559.63 and 45,754.67 is: 63,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,565.45 : 112,559.63 = 45,754.67 : x
  2. Step 2: Convert to fraction form
    81,565.45/112,559.63 = 45,754.67/x
  3. Step 3: Cross multiply
    81,565.45x = 112,559.63 × 45,754.67
  4. Step 4: Simplify right side
    81,565.45x = 5,150,128,778.60
  5. Step 5: Solve for x
    x = 5,150,128,778.60/81,565.45
  6. Step 6: Final answer
    x = 63,141.06

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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.