Home / 62,850.21-86,648.40-42,672.07

Finding the Fourth Proportional to 62,850.21, 86,648.40 and 42,672.07

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Solution

The fourth proportional to 62,850.21, 86,648.40 and 42,672.07 is: 58,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,850.21 : 86,648.40 = 42,672.07 : x
  2. Step 2: Convert to fraction form
    62,850.21/86,648.40 = 42,672.07/x
  3. Step 3: Cross multiply
    62,850.21x = 86,648.40 × 42,672.07
  4. Step 4: Simplify right side
    62,850.21x = 3,697,466,211.10
  5. Step 5: Solve for x
    x = 3,697,466,211.10/62,850.21
  6. Step 6: Final answer
    x = 58,829.81

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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.