Home / 51,858.54-77,778.50-14,421.15

Finding the Fourth Proportional to 51,858.54, 77,778.50 and 14,421.15

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Solution

The fourth proportional to 51,858.54, 77,778.50 and 14,421.15 is: 21,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,858.54 : 77,778.50 = 14,421.15 : x
  2. Step 2: Convert to fraction form
    51,858.54/77,778.50 = 14,421.15/x
  3. Step 3: Cross multiply
    51,858.54x = 77,778.50 × 14,421.15
  4. Step 4: Simplify right side
    51,858.54x = 1,121,655,343.17
  5. Step 5: Solve for x
    x = 1,121,655,343.17/51,858.54
  6. Step 6: Final answer
    x = 21,629.13

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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.