Home / 71,071.08-98,076.52-40,855.60

Finding the Fourth Proportional to 71,071.08, 98,076.52 and 40,855.60

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Solution

The fourth proportional to 71,071.08, 98,076.52 and 40,855.60 is: 56,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.08 : 98,076.52 = 40,855.60 : x
  2. Step 2: Convert to fraction form
    71,071.08/98,076.52 = 40,855.60/x
  3. Step 3: Cross multiply
    71,071.08x = 98,076.52 × 40,855.60
  4. Step 4: Simplify right side
    71,071.08x = 4,006,975,070.51
  5. Step 5: Solve for x
    x = 4,006,975,070.51/71,071.08
  6. Step 6: Final answer
    x = 56,379.83

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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.