Home / 65,457.06-90,323.71-43,942.45

Finding the Fourth Proportional to 65,457.06, 90,323.71 and 43,942.45

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Solution

The fourth proportional to 65,457.06, 90,323.71 and 43,942.45 is: 60,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,457.06 : 90,323.71 = 43,942.45 : x
  2. Step 2: Convert to fraction form
    65,457.06/90,323.71 = 43,942.45/x
  3. Step 3: Cross multiply
    65,457.06x = 90,323.71 × 43,942.45
  4. Step 4: Simplify right side
    65,457.06x = 3,969,044,944.18
  5. Step 5: Solve for x
    x = 3,969,044,944.18/65,457.06
  6. Step 6: Final answer
    x = 60,635.86

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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.