Home / 85,987.56-118,674.08-48,261.81

Finding the Fourth Proportional to 85,987.56, 118,674.08 and 48,261.81

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Solution

The fourth proportional to 85,987.56, 118,674.08 and 48,261.81 is: 66,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,987.56 : 118,674.08 = 48,261.81 : x
  2. Step 2: Convert to fraction form
    85,987.56/118,674.08 = 48,261.81/x
  3. Step 3: Cross multiply
    85,987.56x = 118,674.08 × 48,261.81
  4. Step 4: Simplify right side
    85,987.56x = 5,727,425,900.88
  5. Step 5: Solve for x
    x = 5,727,425,900.88/85,987.56
  6. Step 6: Final answer
    x = 66,607.61

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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.