Home / 92,865.13-139,317.71-28,821.94

Finding the Fourth Proportional to 92,865.13, 139,317.71 and 28,821.94

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Solution

The fourth proportional to 92,865.13, 139,317.71 and 28,821.94 is: 43,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,865.13 : 139,317.71 = 28,821.94 : x
  2. Step 2: Convert to fraction form
    92,865.13/139,317.71 = 28,821.94/x
  3. Step 3: Cross multiply
    92,865.13x = 139,317.71 × 28,821.94
  4. Step 4: Simplify right side
    92,865.13x = 4,015,406,969.82
  5. Step 5: Solve for x
    x = 4,015,406,969.82/92,865.13
  6. Step 6: Final answer
    x = 43,239.12

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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.