Home / 90,871.34-136,261.20-52,932.84

Finding the Fourth Proportional to 90,871.34, 136,261.20 and 52,932.84

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Solution

The fourth proportional to 90,871.34, 136,261.20 and 52,932.84 is: 79,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,871.34 : 136,261.20 = 52,932.84 : x
  2. Step 2: Convert to fraction form
    90,871.34/136,261.20 = 52,932.84/x
  3. Step 3: Cross multiply
    90,871.34x = 136,261.20 × 52,932.84
  4. Step 4: Simplify right side
    90,871.34x = 7,212,692,297.81
  5. Step 5: Solve for x
    x = 7,212,692,297.81/90,871.34
  6. Step 6: Final answer
    x = 79,372.58

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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.