Home / 57,815.47-86,721.85-26,650.72

Finding the Fourth Proportional to 57,815.47, 86,721.85 and 26,650.72

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Solution

The fourth proportional to 57,815.47, 86,721.85 and 26,650.72 is: 39,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,815.47 : 86,721.85 = 26,650.72 : x
  2. Step 2: Convert to fraction form
    57,815.47/86,721.85 = 26,650.72/x
  3. Step 3: Cross multiply
    57,815.47x = 86,721.85 × 26,650.72
  4. Step 4: Simplify right side
    57,815.47x = 2,311,199,742.23
  5. Step 5: Solve for x
    x = 2,311,199,742.23/57,815.47
  6. Step 6: Final answer
    x = 39,975.46

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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.