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Finding the Fourth Proportional to 91,366.60, 137,280.30 and 58,102.60

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Solution

The fourth proportional to 91,366.60, 137,280.30 and 58,102.60 is: 87,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,366.60 : 137,280.30 = 58,102.60 : x
  2. Step 2: Convert to fraction form
    91,366.60/137,280.30 = 58,102.60/x
  3. Step 3: Cross multiply
    91,366.60x = 137,280.30 × 58,102.60
  4. Step 4: Simplify right side
    91,366.60x = 7,976,342,358.78
  5. Step 5: Solve for x
    x = 7,976,342,358.78/91,366.60
  6. Step 6: Final answer
    x = 87,300.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.