Home / 91,470.24-126,224.64-51,189.12

Finding the Fourth Proportional to 91,470.24, 126,224.64 and 51,189.12

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Solution

The fourth proportional to 91,470.24, 126,224.64 and 51,189.12 is: 70,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,470.24 : 126,224.64 = 51,189.12 : x
  2. Step 2: Convert to fraction form
    91,470.24/126,224.64 = 51,189.12/x
  3. Step 3: Cross multiply
    91,470.24x = 126,224.64 × 51,189.12
  4. Step 4: Simplify right side
    91,470.24x = 6,461,328,243.92
  5. Step 5: Solve for x
    x = 6,461,328,243.92/91,470.24
  6. Step 6: Final answer
    x = 70,638.58

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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.