Home / 56,759.48-85,146.29-19,316.68

Finding the Fourth Proportional to 56,759.48, 85,146.29 and 19,316.68

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Solution

The fourth proportional to 56,759.48, 85,146.29 and 19,316.68 is: 28,977.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.48 : 85,146.29 = 19,316.68 : x
  2. Step 2: Convert to fraction form
    56,759.48/85,146.29 = 19,316.68/x
  3. Step 3: Cross multiply
    56,759.48x = 85,146.29 × 19,316.68
  4. Step 4: Simplify right side
    56,759.48x = 1,644,743,400.11
  5. Step 5: Solve for x
    x = 1,644,743,400.11/56,759.48
  6. Step 6: Final answer
    x = 28,977.42

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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.