Home / 78,314.78-117,476.26-36,234.16

Finding the Fourth Proportional to 78,314.78, 117,476.26 and 36,234.16

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Solution

The fourth proportional to 78,314.78, 117,476.26 and 36,234.16 is: 54,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314.78 : 117,476.26 = 36,234.16 : x
  2. Step 2: Convert to fraction form
    78,314.78/117,476.26 = 36,234.16/x
  3. Step 3: Cross multiply
    78,314.78x = 117,476.26 × 36,234.16
  4. Step 4: Simplify right side
    78,314.78x = 4,256,653,601.04
  5. Step 5: Solve for x
    x = 4,256,653,601.04/78,314.78
  6. Step 6: Final answer
    x = 54,353.13

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1.5x scale

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.