Home / 51,433.58-70,985.90-31,286.55

Finding the Fourth Proportional to 51,433.58, 70,985.90 and 31,286.55

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Solution

The fourth proportional to 51,433.58, 70,985.90 and 31,286.55 is: 43,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,433.58 : 70,985.90 = 31,286.55 : x
  2. Step 2: Convert to fraction form
    51,433.58/70,985.90 = 31,286.55/x
  3. Step 3: Cross multiply
    51,433.58x = 70,985.90 × 31,286.55
  4. Step 4: Simplify right side
    51,433.58x = 2,220,904,254.06
  5. Step 5: Solve for x
    x = 2,220,904,254.06/51,433.58
  6. Step 6: Final answer
    x = 43,180.04

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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.