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Finding the Fourth Proportional to 91,955.86, 126,912.81 and 56,166.46

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Solution

The fourth proportional to 91,955.86, 126,912.81 and 56,166.46 is: 77,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,955.86 : 126,912.81 = 56,166.46 : x
  2. Step 2: Convert to fraction form
    91,955.86/126,912.81 = 56,166.46/x
  3. Step 3: Cross multiply
    91,955.86x = 126,912.81 × 56,166.46
  4. Step 4: Simplify right side
    91,955.86x = 7,128,243,266.35
  5. Step 5: Solve for x
    x = 7,128,243,266.35/91,955.86
  6. Step 6: Final answer
    x = 77,518.10

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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.