Home / 91,910.16-126,835.21-53,147.05

Finding the Fourth Proportional to 91,910.16, 126,835.21 and 53,147.05

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Solution

The fourth proportional to 91,910.16, 126,835.21 and 53,147.05 is: 73,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,910.16 : 126,835.21 = 53,147.05 : x
  2. Step 2: Convert to fraction form
    91,910.16/126,835.21 = 53,147.05/x
  3. Step 3: Cross multiply
    91,910.16x = 126,835.21 × 53,147.05
  4. Step 4: Simplify right side
    91,910.16x = 6,740,917,247.63
  5. Step 5: Solve for x
    x = 6,740,917,247.63/91,910.16
  6. Step 6: Final answer
    x = 73,342.46

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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.