Home / 51,636.37-71,252.40-28,970.65

Finding the Fourth Proportional to 51,636.37, 71,252.40 and 28,970.65

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Solution

The fourth proportional to 51,636.37, 71,252.40 and 28,970.65 is: 39,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,636.37 : 71,252.40 = 28,970.65 : x
  2. Step 2: Convert to fraction form
    51,636.37/71,252.40 = 28,970.65/x
  3. Step 3: Cross multiply
    51,636.37x = 71,252.40 × 28,970.65
  4. Step 4: Simplify right side
    51,636.37x = 2,064,228,163.93
  5. Step 5: Solve for x
    x = 2,064,228,163.93/51,636.37
  6. Step 6: Final answer
    x = 39,976.25

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1.5x scale

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.