Home / 92,742.75-139,132.16-39,434.12

Finding the Fourth Proportional to 92,742.75, 139,132.16 and 39,434.12

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Solution

The fourth proportional to 92,742.75, 139,132.16 and 39,434.12 is: 59,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,742.75 : 139,132.16 = 39,434.12 : x
  2. Step 2: Convert to fraction form
    92,742.75/139,132.16 = 39,434.12/x
  3. Step 3: Cross multiply
    92,742.75x = 139,132.16 × 39,434.12
  4. Step 4: Simplify right side
    92,742.75x = 5,486,553,696.22
  5. Step 5: Solve for x
    x = 5,486,553,696.22/92,742.75
  6. Step 6: Final answer
    x = 59,158.84

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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.