Home / 51,639.67-71,259.85-28,976.55

Finding the Fourth Proportional to 51,639.67, 71,259.85 and 28,976.55

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Solution

The fourth proportional to 51,639.67, 71,259.85 and 28,976.55 is: 39,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.67 : 71,259.85 = 28,976.55 : x
  2. Step 2: Convert to fraction form
    51,639.67/71,259.85 = 28,976.55/x
  3. Step 3: Cross multiply
    51,639.67x = 71,259.85 × 28,976.55
  4. Step 4: Simplify right side
    51,639.67x = 2,064,864,606.52
  5. Step 5: Solve for x
    x = 2,064,864,606.52/51,639.67
  6. Step 6: Final answer
    x = 39,986.01

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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.