Home / 55,578.62-76,742.72-51,328.13

Finding the Fourth Proportional to 55,578.62, 76,742.72 and 51,328.13

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Solution

The fourth proportional to 55,578.62, 76,742.72 and 51,328.13 is: 70,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,578.62 : 76,742.72 = 51,328.13 : x
  2. Step 2: Convert to fraction form
    55,578.62/76,742.72 = 51,328.13/x
  3. Step 3: Cross multiply
    55,578.62x = 76,742.72 × 51,328.13
  4. Step 4: Simplify right side
    55,578.62x = 3,939,059,668.36
  5. Step 5: Solve for x
    x = 3,939,059,668.36/55,578.62
  6. Step 6: Final answer
    x = 70,873.66

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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.