Home / 86,442.54-119,345.18-66,261.39

Finding the Fourth Proportional to 86,442.54, 119,345.18 and 66,261.39

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Solution

The fourth proportional to 86,442.54, 119,345.18 and 66,261.39 is: 91,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,442.54 : 119,345.18 = 66,261.39 : x
  2. Step 2: Convert to fraction form
    86,442.54/119,345.18 = 66,261.39/x
  3. Step 3: Cross multiply
    86,442.54x = 119,345.18 × 66,261.39
  4. Step 4: Simplify right side
    86,442.54x = 7,907,977,185.29
  5. Step 5: Solve for x
    x = 7,907,977,185.29/86,442.54
  6. Step 6: Final answer
    x = 91,482.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.