Home / 78,936.08-108,929.94-43,126.16

Finding the Fourth Proportional to 78,936.08, 108,929.94 and 43,126.16

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Solution

The fourth proportional to 78,936.08, 108,929.94 and 43,126.16 is: 59,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,936.08 : 108,929.94 = 43,126.16 : x
  2. Step 2: Convert to fraction form
    78,936.08/108,929.94 = 43,126.16/x
  3. Step 3: Cross multiply
    78,936.08x = 108,929.94 × 43,126.16
  4. Step 4: Simplify right side
    78,936.08x = 4,697,730,021.23
  5. Step 5: Solve for x
    x = 4,697,730,021.23/78,936.08
  6. Step 6: Final answer
    x = 59,513.09

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1.5x scale

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.