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Finding the Fourth Proportional to 89,378.57, 134,065.80 and 44,993.40

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Solution

The fourth proportional to 89,378.57, 134,065.80 and 44,993.40 is: 67,489.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,378.57 : 134,065.80 = 44,993.40 : x
  2. Step 2: Convert to fraction form
    89,378.57/134,065.80 = 44,993.40/x
  3. Step 3: Cross multiply
    89,378.57x = 134,065.80 × 44,993.40
  4. Step 4: Simplify right side
    89,378.57x = 6,032,076,165.72
  5. Step 5: Solve for x
    x = 6,032,076,165.72/89,378.57
  6. Step 6: Final answer
    x = 67,489.07

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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.