Home / 51,518.68-71,089.86-28,854.52

Finding the Fourth Proportional to 51,518.68, 71,089.86 and 28,854.52

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Solution

The fourth proportional to 51,518.68, 71,089.86 and 28,854.52 is: 39,815.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,518.68 : 71,089.86 = 28,854.52 : x
  2. Step 2: Convert to fraction form
    51,518.68/71,089.86 = 28,854.52/x
  3. Step 3: Cross multiply
    51,518.68x = 71,089.86 × 28,854.52
  4. Step 4: Simplify right side
    51,518.68x = 2,051,263,787.17
  5. Step 5: Solve for x
    x = 2,051,263,787.17/51,518.68
  6. Step 6: Final answer
    x = 39,815.92

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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.