Home / 71,071.60-98,078.36-39,240.22

Finding the Fourth Proportional to 71,071.60, 98,078.36 and 39,240.22

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Solution

The fourth proportional to 71,071.60, 98,078.36 and 39,240.22 is: 54,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.60 : 98,078.36 = 39,240.22 : x
  2. Step 2: Convert to fraction form
    71,071.60/98,078.36 = 39,240.22/x
  3. Step 3: Cross multiply
    71,071.60x = 98,078.36 × 39,240.22
  4. Step 4: Simplify right side
    71,071.60x = 3,848,616,423.64
  5. Step 5: Solve for x
    x = 3,848,616,423.64/71,071.60
  6. Step 6: Final answer
    x = 54,151.26

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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.