Home / 76,163.15-105,072.05-45,931.67

Finding the Fourth Proportional to 76,163.15, 105,072.05 and 45,931.67

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Solution

The fourth proportional to 76,163.15, 105,072.05 and 45,931.67 is: 63,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,163.15 : 105,072.05 = 45,931.67 : x
  2. Step 2: Convert to fraction form
    76,163.15/105,072.05 = 45,931.67/x
  3. Step 3: Cross multiply
    76,163.15x = 105,072.05 × 45,931.67
  4. Step 4: Simplify right side
    76,163.15x = 4,826,134,726.82
  5. Step 5: Solve for x
    x = 4,826,134,726.82/76,163.15
  6. Step 6: Final answer
    x = 63,365.74

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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.