Home / 78,583.64-117,872.55-34,210.49

Finding the Fourth Proportional to 78,583.64, 117,872.55 and 34,210.49

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Solution

The fourth proportional to 78,583.64, 117,872.55 and 34,210.49 is: 51,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,583.64 : 117,872.55 = 34,210.49 : x
  2. Step 2: Convert to fraction form
    78,583.64/117,872.55 = 34,210.49/x
  3. Step 3: Cross multiply
    78,583.64x = 117,872.55 × 34,210.49
  4. Step 4: Simplify right side
    78,583.64x = 4,032,477,103.69
  5. Step 5: Solve for x
    x = 4,032,477,103.69/78,583.64
  6. Step 6: Final answer
    x = 51,314.46

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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.