Home / 89,740.32-123,838.74-51,506.16

Finding the Fourth Proportional to 89,740.32, 123,838.74 and 51,506.16

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Solution

The fourth proportional to 89,740.32, 123,838.74 and 51,506.16 is: 71,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,740.32 : 123,838.74 = 51,506.16 : x
  2. Step 2: Convert to fraction form
    89,740.32/123,838.74 = 51,506.16/x
  3. Step 3: Cross multiply
    89,740.32x = 123,838.74 × 51,506.16
  4. Step 4: Simplify right side
    89,740.32x = 6,378,457,956.64
  5. Step 5: Solve for x
    x = 6,378,457,956.64/89,740.32
  6. Step 6: Final answer
    x = 71,076.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.