Home / 98,928.72-136,528.34-55,893.30

Finding the Fourth Proportional to 98,928.72, 136,528.34 and 55,893.30

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Solution

The fourth proportional to 98,928.72, 136,528.34 and 55,893.30 is: 77,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,928.72 : 136,528.34 = 55,893.30 : x
  2. Step 2: Convert to fraction form
    98,928.72/136,528.34 = 55,893.30/x
  3. Step 3: Cross multiply
    98,928.72x = 136,528.34 × 55,893.30
  4. Step 4: Simplify right side
    98,928.72x = 7,631,019,466.12
  5. Step 5: Solve for x
    x = 7,631,019,466.12/98,928.72
  6. Step 6: Final answer
    x = 77,136.54

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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.