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Finding the Fourth Proportional to 91,896.04, 126,941.70 and 72,004.60

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Solution

The fourth proportional to 91,896.04, 126,941.70 and 72,004.60 is: 99,464.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,896.04 : 126,941.70 = 72,004.60 : x
  2. Step 2: Convert to fraction form
    91,896.04/126,941.70 = 72,004.60/x
  3. Step 3: Cross multiply
    91,896.04x = 126,941.70 × 72,004.60
  4. Step 4: Simplify right side
    91,896.04x = 9,140,386,331.82
  5. Step 5: Solve for x
    x = 9,140,386,331.82/91,896.04
  6. Step 6: Final answer
    x = 99,464.42

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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.