Home / 99,360.66-149,040.99-57,778.50

Finding the Fourth Proportional to 99,360.66, 149,040.99 and 57,778.50

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Solution

The fourth proportional to 99,360.66, 149,040.99 and 57,778.50 is: 86,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,360.66 : 149,040.99 = 57,778.50 : x
  2. Step 2: Convert to fraction form
    99,360.66/149,040.99 = 57,778.50/x
  3. Step 3: Cross multiply
    99,360.66x = 149,040.99 × 57,778.50
  4. Step 4: Simplify right side
    99,360.66x = 8,611,364,840.72
  5. Step 5: Solve for x
    x = 8,611,364,840.72/99,360.66
  6. Step 6: Final answer
    x = 86,667.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.