Home / 85,343.22-128,051.74-32,740.41

Finding the Fourth Proportional to 85,343.22, 128,051.74 and 32,740.41

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Solution

The fourth proportional to 85,343.22, 128,051.74 and 32,740.41 is: 49,124.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,343.22 : 128,051.74 = 32,740.41 : x
  2. Step 2: Convert to fraction form
    85,343.22/128,051.74 = 32,740.41/x
  3. Step 3: Cross multiply
    85,343.22x = 128,051.74 × 32,740.41
  4. Step 4: Simplify right side
    85,343.22x = 4,192,466,029.54
  5. Step 5: Solve for x
    x = 4,192,466,029.54/85,343.22
  6. Step 6: Final answer
    x = 49,124.77

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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.