Home / 89,855.20-134,782.80-61,861.60

Finding the Fourth Proportional to 89,855.20, 134,782.80 and 61,861.60

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Solution

The fourth proportional to 89,855.20, 134,782.80 and 61,861.60 is: 92,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,855.20 : 134,782.80 = 61,861.60 : x
  2. Step 2: Convert to fraction form
    89,855.20/134,782.80 = 61,861.60/x
  3. Step 3: Cross multiply
    89,855.20x = 134,782.80 × 61,861.60
  4. Step 4: Simplify right side
    89,855.20x = 8,337,879,660.48
  5. Step 5: Solve for x
    x = 8,337,879,660.48/89,855.20
  6. Step 6: Final answer
    x = 92,792.40

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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.