Home / 89,784.64-134,716.63-47,079.87

Finding the Fourth Proportional to 89,784.64, 134,716.63 and 47,079.87

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Solution

The fourth proportional to 89,784.64, 134,716.63 and 47,079.87 is: 70,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,784.64 : 134,716.63 = 47,079.87 : x
  2. Step 2: Convert to fraction form
    89,784.64/134,716.63 = 47,079.87/x
  3. Step 3: Cross multiply
    89,784.64x = 134,716.63 × 47,079.87
  4. Step 4: Simplify right side
    89,784.64x = 6,342,441,427.24
  5. Step 5: Solve for x
    x = 6,342,441,427.24/89,784.64
  6. Step 6: Final answer
    x = 70,640.61

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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.