Home / 76,688.48-115,060.40-26,775.93

Finding the Fourth Proportional to 76,688.48, 115,060.40 and 26,775.93

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Solution

The fourth proportional to 76,688.48, 115,060.40 and 26,775.93 is: 40,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,688.48 : 115,060.40 = 26,775.93 : x
  2. Step 2: Convert to fraction form
    76,688.48/115,060.40 = 26,775.93/x
  3. Step 3: Cross multiply
    76,688.48x = 115,060.40 × 26,775.93
  4. Step 4: Simplify right side
    76,688.48x = 3,080,848,925.56
  5. Step 5: Solve for x
    x = 3,080,848,925.56/76,688.48
  6. Step 6: Final answer
    x = 40,173.56

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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.