Home / 51,040.21-70,437.83-28,381.53

Finding the Fourth Proportional to 51,040.21, 70,437.83 and 28,381.53

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Solution

The fourth proportional to 51,040.21, 70,437.83 and 28,381.53 is: 39,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.21 : 70,437.83 = 28,381.53 : x
  2. Step 2: Convert to fraction form
    51,040.21/70,437.83 = 28,381.53/x
  3. Step 3: Cross multiply
    51,040.21x = 70,437.83 × 28,381.53
  4. Step 4: Simplify right side
    51,040.21x = 1,999,133,385.28
  5. Step 5: Solve for x
    x = 1,999,133,385.28/51,040.21
  6. Step 6: Final answer
    x = 39,167.81

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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.