Home / 53,120.77-79,681.19-50,814.55

Finding the Fourth Proportional to 53,120.77, 79,681.19 and 50,814.55

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Solution

The fourth proportional to 53,120.77, 79,681.19 and 50,814.55 is: 76,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.77 : 79,681.19 = 50,814.55 : x
  2. Step 2: Convert to fraction form
    53,120.77/79,681.19 = 50,814.55/x
  3. Step 3: Cross multiply
    53,120.77x = 79,681.19 × 50,814.55
  4. Step 4: Simplify right side
    53,120.77x = 4,048,963,813.31
  5. Step 5: Solve for x
    x = 4,048,963,813.31/53,120.77
  6. Step 6: Final answer
    x = 76,221.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.