Home / 78,181.61-117,429.21-46,653.17

Finding the Fourth Proportional to 78,181.61, 117,429.21 and 46,653.17

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Solution

The fourth proportional to 78,181.61, 117,429.21 and 46,653.17 is: 70,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,181.61 : 117,429.21 = 46,653.17 : x
  2. Step 2: Convert to fraction form
    78,181.61/117,429.21 = 46,653.17/x
  3. Step 3: Cross multiply
    78,181.61x = 117,429.21 × 46,653.17
  4. Step 4: Simplify right side
    78,181.61x = 5,478,444,309.95
  5. Step 5: Solve for x
    x = 5,478,444,309.95/78,181.61
  6. Step 6: Final answer
    x = 70,073.32

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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.