Home / 85,514.98-118,006.32-49,699.21

Finding the Fourth Proportional to 85,514.98, 118,006.32 and 49,699.21

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Solution

The fourth proportional to 85,514.98, 118,006.32 and 49,699.21 is: 68,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.98 : 118,006.32 = 49,699.21 : x
  2. Step 2: Convert to fraction form
    85,514.98/118,006.32 = 49,699.21/x
  3. Step 3: Cross multiply
    85,514.98x = 118,006.32 × 49,699.21
  4. Step 4: Simplify right side
    85,514.98x = 5,864,820,879.01
  5. Step 5: Solve for x
    x = 5,864,820,879.01/85,514.98
  6. Step 6: Final answer
    x = 68,582.38

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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.