Home / 91,440.60-126,188.21-51,155.03

Finding the Fourth Proportional to 91,440.60, 126,188.21 and 51,155.03

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Solution

The fourth proportional to 91,440.60, 126,188.21 and 51,155.03 is: 70,594.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,440.60 : 126,188.21 = 51,155.03 : x
  2. Step 2: Convert to fraction form
    91,440.60/126,188.21 = 51,155.03/x
  3. Step 3: Cross multiply
    91,440.60x = 126,188.21 × 51,155.03
  4. Step 4: Simplify right side
    91,440.60x = 6,455,161,668.20
  5. Step 5: Solve for x
    x = 6,455,161,668.20/91,440.60
  6. Step 6: Final answer
    x = 70,594.04

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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.