Home / 40,868.99-61,270.40-12,774.58

Finding the Fourth Proportional to 40,868.99, 61,270.40 and 12,774.58

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Solution

The fourth proportional to 40,868.99, 61,270.40 and 12,774.58 is: 19,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,868.99 : 61,270.40 = 12,774.58 : x
  2. Step 2: Convert to fraction form
    40,868.99/61,270.40 = 12,774.58/x
  3. Step 3: Cross multiply
    40,868.99x = 61,270.40 × 12,774.58
  4. Step 4: Simplify right side
    40,868.99x = 782,703,433.34
  5. Step 5: Solve for x
    x = 782,703,433.34/40,868.99
  6. Step 6: Final answer
    x = 19,151.52

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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.