Home / 70,088.12-105,091.78-47,928.34

Finding the Fourth Proportional to 70,088.12, 105,091.78 and 47,928.34

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Solution

The fourth proportional to 70,088.12, 105,091.78 and 47,928.34 is: 71,864.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,088.12 : 105,091.78 = 47,928.34 : x
  2. Step 2: Convert to fraction form
    70,088.12/105,091.78 = 47,928.34/x
  3. Step 3: Cross multiply
    70,088.12x = 105,091.78 × 47,928.34
  4. Step 4: Simplify right side
    70,088.12x = 5,036,874,563.05
  5. Step 5: Solve for x
    x = 5,036,874,563.05/70,088.12
  6. Step 6: Final answer
    x = 71,864.88

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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.