Home / 51,415.76-70,953.27-28,754.49

Finding the Fourth Proportional to 51,415.76, 70,953.27 and 28,754.49

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Solution

The fourth proportional to 51,415.76, 70,953.27 and 28,754.49 is: 39,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.76 : 70,953.27 = 28,754.49 : x
  2. Step 2: Convert to fraction form
    51,415.76/70,953.27 = 28,754.49/x
  3. Step 3: Cross multiply
    51,415.76x = 70,953.27 × 28,754.49
  4. Step 4: Simplify right side
    51,415.76x = 2,040,225,250.93
  5. Step 5: Solve for x
    x = 2,040,225,250.93/51,415.76
  6. Step 6: Final answer
    x = 39,680.93

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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.