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Finding the Fourth Proportional to 91,098.60, 125,774.52 and 57,153.60

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Solution

The fourth proportional to 91,098.60, 125,774.52 and 57,153.60 is: 78,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,098.60 : 125,774.52 = 57,153.60 : x
  2. Step 2: Convert to fraction form
    91,098.60/125,774.52 = 57,153.60/x
  3. Step 3: Cross multiply
    91,098.60x = 125,774.52 × 57,153.60
  4. Step 4: Simplify right side
    91,098.60x = 7,188,466,606.27
  5. Step 5: Solve for x
    x = 7,188,466,606.27/91,098.60
  6. Step 6: Final answer
    x = 78,908.64

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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.