Home / 70,507.06-105,770.48-20,590.84

Finding the Fourth Proportional to 70,507.06, 105,770.48 and 20,590.84

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Solution

The fourth proportional to 70,507.06, 105,770.48 and 20,590.84 is: 30,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,507.06 : 105,770.48 = 20,590.84 : x
  2. Step 2: Convert to fraction form
    70,507.06/105,770.48 = 20,590.84/x
  3. Step 3: Cross multiply
    70,507.06x = 105,770.48 × 20,590.84
  4. Step 4: Simplify right side
    70,507.06x = 2,177,903,059.66
  5. Step 5: Solve for x
    x = 2,177,903,059.66/70,507.06
  6. Step 6: Final answer
    x = 30,889.15

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1.5x scale

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.