Home / 77,395.96-106,761.06-48,670.05

Finding the Fourth Proportional to 77,395.96, 106,761.06 and 48,670.05

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Solution

The fourth proportional to 77,395.96, 106,761.06 and 48,670.05 is: 67,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,395.96 : 106,761.06 = 48,670.05 : x
  2. Step 2: Convert to fraction form
    77,395.96/106,761.06 = 48,670.05/x
  3. Step 3: Cross multiply
    77,395.96x = 106,761.06 × 48,670.05
  4. Step 4: Simplify right side
    77,395.96x = 5,196,066,128.25
  5. Step 5: Solve for x
    x = 5,196,066,128.25/77,395.96
  6. Step 6: Final answer
    x = 67,136.14

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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.