Home / 50,871.58-70,237.55-31,780.42

Finding the Fourth Proportional to 50,871.58, 70,237.55 and 31,780.42

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Solution

The fourth proportional to 50,871.58, 70,237.55 and 31,780.42 is: 43,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.58 : 70,237.55 = 31,780.42 : x
  2. Step 2: Convert to fraction form
    50,871.58/70,237.55 = 31,780.42/x
  3. Step 3: Cross multiply
    50,871.58x = 70,237.55 × 31,780.42
  4. Step 4: Simplify right side
    50,871.58x = 2,232,178,742.63
  5. Step 5: Solve for x
    x = 2,232,178,742.63/50,871.58
  6. Step 6: Final answer
    x = 43,878.70

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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.