Home / 76,851.15-106,052.47-42,860.67

Finding the Fourth Proportional to 76,851.15, 106,052.47 and 42,860.67

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Solution

The fourth proportional to 76,851.15, 106,052.47 and 42,860.67 is: 59,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,851.15 : 106,052.47 = 42,860.67 : x
  2. Step 2: Convert to fraction form
    76,851.15/106,052.47 = 42,860.67/x
  3. Step 3: Cross multiply
    76,851.15x = 106,052.47 × 42,860.67
  4. Step 4: Simplify right side
    76,851.15x = 4,545,479,919.35
  5. Step 5: Solve for x
    x = 4,545,479,919.35/76,851.15
  6. Step 6: Final answer
    x = 59,146.54

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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.