Home / 51,433.81-70,985.22-28,774.06

Finding the Fourth Proportional to 51,433.81, 70,985.22 and 28,774.06

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Solution

The fourth proportional to 51,433.81, 70,985.22 and 28,774.06 is: 39,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,433.81 : 70,985.22 = 28,774.06 : x
  2. Step 2: Convert to fraction form
    51,433.81/70,985.22 = 28,774.06/x
  3. Step 3: Cross multiply
    51,433.81x = 70,985.22 × 28,774.06
  4. Step 4: Simplify right side
    51,433.81x = 2,042,532,979.39
  5. Step 5: Solve for x
    x = 2,042,532,979.39/51,433.81
  6. Step 6: Final answer
    x = 39,711.87

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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.