Home / 77,301.37-115,915.40-29,938.64

Finding the Fourth Proportional to 77,301.37, 115,915.40 and 29,938.64

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Solution

The fourth proportional to 77,301.37, 115,915.40 and 29,938.64 is: 44,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,301.37 : 115,915.40 = 29,938.64 : x
  2. Step 2: Convert to fraction form
    77,301.37/115,915.40 = 29,938.64/x
  3. Step 3: Cross multiply
    77,301.37x = 115,915.40 × 29,938.64
  4. Step 4: Simplify right side
    77,301.37x = 3,470,349,431.06
  5. Step 5: Solve for x
    x = 3,470,349,431.06/77,301.37
  6. Step 6: Final answer
    x = 44,893.76

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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.