Home / 71,115.39-98,137.85-39,284.01

Finding the Fourth Proportional to 71,115.39, 98,137.85 and 39,284.01

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Solution

The fourth proportional to 71,115.39, 98,137.85 and 39,284.01 is: 54,211.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,115.39 : 98,137.85 = 39,284.01 : x
  2. Step 2: Convert to fraction form
    71,115.39/98,137.85 = 39,284.01/x
  3. Step 3: Cross multiply
    71,115.39x = 98,137.85 × 39,284.01
  4. Step 4: Simplify right side
    71,115.39x = 3,855,248,084.36
  5. Step 5: Solve for x
    x = 3,855,248,084.36/71,115.39
  6. Step 6: Final answer
    x = 54,211.16

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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.