Home / 91,385.52-126,109.44-51,099.36

Finding the Fourth Proportional to 91,385.52, 126,109.44 and 51,099.36

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Solution

The fourth proportional to 91,385.52, 126,109.44 and 51,099.36 is: 70,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,385.52 : 126,109.44 = 51,099.36 : x
  2. Step 2: Convert to fraction form
    91,385.52/126,109.44 = 51,099.36/x
  3. Step 3: Cross multiply
    91,385.52x = 126,109.44 × 51,099.36
  4. Step 4: Simplify right side
    91,385.52x = 6,444,111,673.96
  5. Step 5: Solve for x
    x = 6,444,111,673.96/91,385.52
  6. Step 6: Final answer
    x = 70,515.68

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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.