Home / 52,731.21-72,790.20-31,506.51

Finding the Fourth Proportional to 52,731.21, 72,790.20 and 31,506.51

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Solution

The fourth proportional to 52,731.21, 72,790.20 and 31,506.51 is: 43,491.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,731.21 : 72,790.20 = 31,506.51 : x
  2. Step 2: Convert to fraction form
    52,731.21/72,790.20 = 31,506.51/x
  3. Step 3: Cross multiply
    52,731.21x = 72,790.20 × 31,506.51
  4. Step 4: Simplify right side
    52,731.21x = 2,293,365,164.20
  5. Step 5: Solve for x
    x = 2,293,365,164.20/52,731.21
  6. Step 6: Final answer
    x = 43,491.61

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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.