Home / 71,175.48-98,222.91-39,345.51

Finding the Fourth Proportional to 71,175.48, 98,222.91 and 39,345.51

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Solution

The fourth proportional to 71,175.48, 98,222.91 and 39,345.51 is: 54,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,175.48 : 98,222.91 = 39,345.51 : x
  2. Step 2: Convert to fraction form
    71,175.48/98,222.91 = 39,345.51/x
  3. Step 3: Cross multiply
    71,175.48x = 98,222.91 × 39,345.51
  4. Step 4: Simplify right side
    71,175.48x = 3,864,630,487.63
  5. Step 5: Solve for x
    x = 3,864,630,487.63/71,175.48
  6. Step 6: Final answer
    x = 54,297.22

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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.