Home / 76,421.56-114,695.52-39,009.28

Finding the Fourth Proportional to 76,421.56, 114,695.52 and 39,009.28

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Solution

The fourth proportional to 76,421.56, 114,695.52 and 39,009.28 is: 58,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421.56 : 114,695.52 = 39,009.28 : x
  2. Step 2: Convert to fraction form
    76,421.56/114,695.52 = 39,009.28/x
  3. Step 3: Cross multiply
    76,421.56x = 114,695.52 × 39,009.28
  4. Step 4: Simplify right side
    76,421.56x = 4,474,189,654.43
  5. Step 5: Solve for x
    x = 4,474,189,654.43/76,421.56
  6. Step 6: Final answer
    x = 58,546.17

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1.5x scale

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.