Home / 51,020.98-70,411.34-28,360.35

Finding the Fourth Proportional to 51,020.98, 70,411.34 and 28,360.35

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Solution

The fourth proportional to 51,020.98, 70,411.34 and 28,360.35 is: 39,138.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.98 : 70,411.34 = 28,360.35 : x
  2. Step 2: Convert to fraction form
    51,020.98/70,411.34 = 28,360.35/x
  3. Step 3: Cross multiply
    51,020.98x = 70,411.34 × 28,360.35
  4. Step 4: Simplify right side
    51,020.98x = 1,996,890,246.37
  5. Step 5: Solve for x
    x = 1,996,890,246.37/51,020.98
  6. Step 6: Final answer
    x = 39,138.61

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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.