Home / 91,895.04-126,940.32-72,003.60

Finding the Fourth Proportional to 91,895.04, 126,940.32 and 72,003.60

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Solution

The fourth proportional to 91,895.04, 126,940.32 and 72,003.60 is: 99,463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,895.04 : 126,940.32 = 72,003.60 : x
  2. Step 2: Convert to fraction form
    91,895.04/126,940.32 = 72,003.60/x
  3. Step 3: Cross multiply
    91,895.04x = 126,940.32 × 72,003.60
  4. Step 4: Simplify right side
    91,895.04x = 9,140,160,025.15
  5. Step 5: Solve for x
    x = 9,140,160,025.15/91,895.04
  6. Step 6: Final answer
    x = 99,463.04

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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.