Home / 51,886.99-77,778.52-20,253.55

Finding the Fourth Proportional to 51,886.99, 77,778.52 and 20,253.55

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Solution

The fourth proportional to 51,886.99, 77,778.52 and 20,253.55 is: 30,360.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,886.99 : 77,778.52 = 20,253.55 : x
  2. Step 2: Convert to fraction form
    51,886.99/77,778.52 = 20,253.55/x
  3. Step 3: Cross multiply
    51,886.99x = 77,778.52 × 20,253.55
  4. Step 4: Simplify right side
    51,886.99x = 1,575,291,236.92
  5. Step 5: Solve for x
    x = 1,575,291,236.92/51,886.99
  6. Step 6: Final answer
    x = 30,360.04

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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.