Home / 91,872.30-126,790.05-51,041.22

Finding the Fourth Proportional to 91,872.30, 126,790.05 and 51,041.22

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Solution

The fourth proportional to 91,872.30, 126,790.05 and 51,041.22 is: 70,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,872.30 : 126,790.05 = 51,041.22 : x
  2. Step 2: Convert to fraction form
    91,872.30/126,790.05 = 51,041.22/x
  3. Step 3: Cross multiply
    91,872.30x = 126,790.05 × 51,041.22
  4. Step 4: Simplify right side
    91,872.30x = 6,471,518,835.86
  5. Step 5: Solve for x
    x = 6,471,518,835.86/91,872.30
  6. Step 6: Final answer
    x = 70,440.37

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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.