Home / 76,090.60-114,074-31,750.38

Finding the Fourth Proportional to 76,090.60, 114,074 and 31,750.38

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Solution

The fourth proportional to 76,090.60, 114,074 and 31,750.38 is: 47,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,090.60 : 114,074 = 31,750.38 : x
  2. Step 2: Convert to fraction form
    76,090.60/114,074 = 31,750.38/x
  3. Step 3: Cross multiply
    76,090.60x = 114,074 × 31,750.38
  4. Step 4: Simplify right side
    76,090.60x = 3,621,892,848.12
  5. Step 5: Solve for x
    x = 3,621,892,848.12/76,090.60
  6. Step 6: Final answer
    x = 47,599.74

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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.