Home / 87,397.02-120,608.73-49,671.54

Finding the Fourth Proportional to 87,397.02, 120,608.73 and 49,671.54

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Solution

The fourth proportional to 87,397.02, 120,608.73 and 49,671.54 is: 68,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,397.02 : 120,608.73 = 49,671.54 : x
  2. Step 2: Convert to fraction form
    87,397.02/120,608.73 = 49,671.54/x
  3. Step 3: Cross multiply
    87,397.02x = 120,608.73 × 49,671.54
  4. Step 4: Simplify right side
    87,397.02x = 5,990,821,356.54
  5. Step 5: Solve for x
    x = 5,990,821,356.54/87,397.02
  6. Step 6: Final answer
    x = 68,547.20

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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.