Home / 52,653.20-72,662.28-31,434.32

Finding the Fourth Proportional to 52,653.20, 72,662.28 and 31,434.32

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Solution

The fourth proportional to 52,653.20, 72,662.28 and 31,434.32 is: 43,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.20 : 72,662.28 = 31,434.32 : x
  2. Step 2: Convert to fraction form
    52,653.20/72,662.28 = 31,434.32/x
  3. Step 3: Cross multiply
    52,653.20x = 72,662.28 × 31,434.32
  4. Step 4: Simplify right side
    52,653.20x = 2,284,089,361.45
  5. Step 5: Solve for x
    x = 2,284,089,361.45/52,653.20
  6. Step 6: Final answer
    x = 43,379.88

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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.