Home / 85,905.04-118,548.84-48,178.96

Finding the Fourth Proportional to 85,905.04, 118,548.84 and 48,178.96

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Solution

The fourth proportional to 85,905.04, 118,548.84 and 48,178.96 is: 66,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,905.04 : 118,548.84 = 48,178.96 : x
  2. Step 2: Convert to fraction form
    85,905.04/118,548.84 = 48,178.96/x
  3. Step 3: Cross multiply
    85,905.04x = 118,548.84 × 48,178.96
  4. Step 4: Simplify right side
    85,905.04x = 5,711,559,820.41
  5. Step 5: Solve for x
    x = 5,711,559,820.41/85,905.04
  6. Step 6: Final answer
    x = 66,486.90

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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.