Home / 85,968.36-118,640.10-54,125.16

Finding the Fourth Proportional to 85,968.36, 118,640.10 and 54,125.16

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Solution

The fourth proportional to 85,968.36, 118,640.10 and 54,125.16 is: 74,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968.36 : 118,640.10 = 54,125.16 : x
  2. Step 2: Convert to fraction form
    85,968.36/118,640.10 = 54,125.16/x
  3. Step 3: Cross multiply
    85,968.36x = 118,640.10 × 54,125.16
  4. Step 4: Simplify right side
    85,968.36x = 6,421,414,394.92
  5. Step 5: Solve for x
    x = 6,421,414,394.92/85,968.36
  6. Step 6: Final answer
    x = 74,695.09

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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.