Home / 42,860.99-64,306.61-19,166.33

Finding the Fourth Proportional to 42,860.99, 64,306.61 and 19,166.33

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Solution

The fourth proportional to 42,860.99, 64,306.61 and 19,166.33 is: 28,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,860.99 : 64,306.61 = 19,166.33 : x
  2. Step 2: Convert to fraction form
    42,860.99/64,306.61 = 19,166.33/x
  3. Step 3: Cross multiply
    42,860.99x = 64,306.61 × 19,166.33
  4. Step 4: Simplify right side
    42,860.99x = 1,232,521,708.44
  5. Step 5: Solve for x
    x = 1,232,521,708.44/42,860.99
  6. Step 6: Final answer
    x = 28,756.26

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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.