Home / 70,631.02-105,923.85-31,187.26

Finding the Fourth Proportional to 70,631.02, 105,923.85 and 31,187.26

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Solution

The fourth proportional to 70,631.02, 105,923.85 and 31,187.26 is: 46,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,631.02 : 105,923.85 = 31,187.26 : x
  2. Step 2: Convert to fraction form
    70,631.02/105,923.85 = 31,187.26/x
  3. Step 3: Cross multiply
    70,631.02x = 105,923.85 × 31,187.26
  4. Step 4: Simplify right side
    70,631.02x = 3,303,474,650.15
  5. Step 5: Solve for x
    x = 3,303,474,650.15/70,631.02
  6. Step 6: Final answer
    x = 46,770.88

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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.