Home / 66,442.31-99,646.46-19,684.25

Finding the Fourth Proportional to 66,442.31, 99,646.46 and 19,684.25

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Solution

The fourth proportional to 66,442.31, 99,646.46 and 19,684.25 is: 29,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,442.31 : 99,646.46 = 19,684.25 : x
  2. Step 2: Convert to fraction form
    66,442.31/99,646.46 = 19,684.25/x
  3. Step 3: Cross multiply
    66,442.31x = 99,646.46 × 19,684.25
  4. Step 4: Simplify right side
    66,442.31x = 1,961,465,731.83
  5. Step 5: Solve for x
    x = 1,961,465,731.83/66,442.31
  6. Step 6: Final answer
    x = 29,521.34

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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.