Home / 77,144.22-106,428.60-48,447

Finding the Fourth Proportional to 77,144.22, 106,428.60 and 48,447

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Solution

The fourth proportional to 77,144.22, 106,428.60 and 48,447 is: 66,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,144.22 : 106,428.60 = 48,447 : x
  2. Step 2: Convert to fraction form
    77,144.22/106,428.60 = 48,447/x
  3. Step 3: Cross multiply
    77,144.22x = 106,428.60 × 48,447
  4. Step 4: Simplify right side
    77,144.22x = 5,156,146,384.20
  5. Step 5: Solve for x
    x = 5,156,146,384.20/77,144.22
  6. Step 6: Final answer
    x = 66,837.75

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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.