Home / 71,181.86-98,223.45-39,345.62

Finding the Fourth Proportional to 71,181.86, 98,223.45 and 39,345.62

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Solution

The fourth proportional to 71,181.86, 98,223.45 and 39,345.62 is: 54,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,181.86 : 98,223.45 = 39,345.62 : x
  2. Step 2: Convert to fraction form
    71,181.86/98,223.45 = 39,345.62/x
  3. Step 3: Cross multiply
    71,181.86x = 98,223.45 × 39,345.62
  4. Step 4: Simplify right side
    71,181.86x = 3,864,662,538.79
  5. Step 5: Solve for x
    x = 3,864,662,538.79/71,181.86
  6. Step 6: Final answer
    x = 54,292.80

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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.