Home / 89,571.32-134,381.58-70,913.48

Finding the Fourth Proportional to 89,571.32, 134,381.58 and 70,913.48

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Solution

The fourth proportional to 89,571.32, 134,381.58 and 70,913.48 is: 106,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,571.32 : 134,381.58 = 70,913.48 : x
  2. Step 2: Convert to fraction form
    89,571.32/134,381.58 = 70,913.48/x
  3. Step 3: Cross multiply
    89,571.32x = 134,381.58 × 70,913.48
  4. Step 4: Simplify right side
    89,571.32x = 9,529,464,946.75
  5. Step 5: Solve for x
    x = 9,529,464,946.75/89,571.32
  6. Step 6: Final answer
    x = 106,389.69

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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.