Home / 91,441.09-126,188.90-51,155.53

Finding the Fourth Proportional to 91,441.09, 126,188.90 and 51,155.53

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Solution

The fourth proportional to 91,441.09, 126,188.90 and 51,155.53 is: 70,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,441.09 : 126,188.90 = 51,155.53 : x
  2. Step 2: Convert to fraction form
    91,441.09/126,188.90 = 51,155.53/x
  3. Step 3: Cross multiply
    91,441.09x = 126,188.90 × 51,155.53
  4. Step 4: Simplify right side
    91,441.09x = 6,455,260,059.62
  5. Step 5: Solve for x
    x = 6,455,260,059.62/91,441.09
  6. Step 6: Final answer
    x = 70,594.74

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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.