Home / 51,322.21-70,820.61-28,659.43

Finding the Fourth Proportional to 51,322.21, 70,820.61 and 28,659.43

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Solution

The fourth proportional to 51,322.21, 70,820.61 and 28,659.43 is: 39,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,322.21 : 70,820.61 = 28,659.43 : x
  2. Step 2: Convert to fraction form
    51,322.21/70,820.61 = 28,659.43/x
  3. Step 3: Cross multiply
    51,322.21x = 70,820.61 × 28,659.43
  4. Step 4: Simplify right side
    51,322.21x = 2,029,678,314.85
  5. Step 5: Solve for x
    x = 2,029,678,314.85/51,322.21
  6. Step 6: Final answer
    x = 39,547.76

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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.