Home / 47,548.78-65,619.57-28,685.50

Finding the Fourth Proportional to 47,548.78, 65,619.57 and 28,685.50

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Solution

The fourth proportional to 47,548.78, 65,619.57 and 28,685.50 is: 39,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,548.78 : 65,619.57 = 28,685.50 : x
  2. Step 2: Convert to fraction form
    47,548.78/65,619.57 = 28,685.50/x
  3. Step 3: Cross multiply
    47,548.78x = 65,619.57 × 28,685.50
  4. Step 4: Simplify right side
    47,548.78x = 1,882,330,175.24
  5. Step 5: Solve for x
    x = 1,882,330,175.24/47,548.78
  6. Step 6: Final answer
    x = 39,587.35

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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.