Home / 71,120.24-98,148.75-40,905.53

Finding the Fourth Proportional to 71,120.24, 98,148.75 and 40,905.53

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Solution

The fourth proportional to 71,120.24, 98,148.75 and 40,905.53 is: 56,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,120.24 : 98,148.75 = 40,905.53 : x
  2. Step 2: Convert to fraction form
    71,120.24/98,148.75 = 40,905.53/x
  3. Step 3: Cross multiply
    71,120.24x = 98,148.75 × 40,905.53
  4. Step 4: Simplify right side
    71,120.24x = 4,014,826,146.84
  5. Step 5: Solve for x
    x = 4,014,826,146.84/71,120.24
  6. Step 6: Final answer
    x = 56,451.25

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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.