Home / 85,610.04-118,135.44-47,877

Finding the Fourth Proportional to 85,610.04, 118,135.44 and 47,877

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Solution

The fourth proportional to 85,610.04, 118,135.44 and 47,877 is: 66,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,610.04 : 118,135.44 = 47,877 : x
  2. Step 2: Convert to fraction form
    85,610.04/118,135.44 = 47,877/x
  3. Step 3: Cross multiply
    85,610.04x = 118,135.44 × 47,877
  4. Step 4: Simplify right side
    85,610.04x = 5,655,970,460.88
  5. Step 5: Solve for x
    x = 5,655,970,460.88/85,610.04
  6. Step 6: Final answer
    x = 66,066.67

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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.