Home / 51,340.20-70,848.90-30,115.38

Finding the Fourth Proportional to 51,340.20, 70,848.90 and 30,115.38

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Solution

The fourth proportional to 51,340.20, 70,848.90 and 30,115.38 is: 41,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340.20 : 70,848.90 = 30,115.38 : x
  2. Step 2: Convert to fraction form
    51,340.20/70,848.90 = 30,115.38/x
  3. Step 3: Cross multiply
    51,340.20x = 70,848.90 × 30,115.38
  4. Step 4: Simplify right side
    51,340.20x = 2,133,641,546.08
  5. Step 5: Solve for x
    x = 2,133,641,546.08/51,340.20
  6. Step 6: Final answer
    x = 41,558.89

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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.