Home / 78,601.51-117,823.47-36,511.17

Finding the Fourth Proportional to 78,601.51, 117,823.47 and 36,511.17

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Solution

The fourth proportional to 78,601.51, 117,823.47 and 36,511.17 is: 54,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,601.51 : 117,823.47 = 36,511.17 : x
  2. Step 2: Convert to fraction form
    78,601.51/117,823.47 = 36,511.17/x
  3. Step 3: Cross multiply
    78,601.51x = 117,823.47 × 36,511.17
  4. Step 4: Simplify right side
    78,601.51x = 4,301,872,743.16
  5. Step 5: Solve for x
    x = 4,301,872,743.16/78,601.51
  6. Step 6: Final answer
    x = 54,730.15

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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.