Home / 89,985.86-124,181.42-49,700.64

Finding the Fourth Proportional to 89,985.86, 124,181.42 and 49,700.64

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Solution

The fourth proportional to 89,985.86, 124,181.42 and 49,700.64 is: 68,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,985.86 : 124,181.42 = 49,700.64 : x
  2. Step 2: Convert to fraction form
    89,985.86/124,181.42 = 49,700.64/x
  3. Step 3: Cross multiply
    89,985.86x = 124,181.42 × 49,700.64
  4. Step 4: Simplify right side
    89,985.86x = 6,171,895,801.61
  5. Step 5: Solve for x
    x = 6,171,895,801.61/89,985.86
  6. Step 6: Final answer
    x = 68,587.40

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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.