Home / 51,320.34-70,815.81-28,660.59

Finding the Fourth Proportional to 51,320.34, 70,815.81 and 28,660.59

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Solution

The fourth proportional to 51,320.34, 70,815.81 and 28,660.59 is: 39,548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,320.34 : 70,815.81 = 28,660.59 : x
  2. Step 2: Convert to fraction form
    51,320.34/70,815.81 = 28,660.59/x
  3. Step 3: Cross multiply
    51,320.34x = 70,815.81 × 28,660.59
  4. Step 4: Simplify right side
    51,320.34x = 2,029,622,895.93
  5. Step 5: Solve for x
    x = 2,029,622,895.93/51,320.34
  6. Step 6: Final answer
    x = 39,548.12

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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.