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Finding the Fourth Proportional to 96,300, 144,478.80 and 40,900.32

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Solution

The fourth proportional to 96,300, 144,478.80 and 40,900.32 is: 61,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,300 : 144,478.80 = 40,900.32 : x
  2. Step 2: Convert to fraction form
    96,300/144,478.80 = 40,900.32/x
  3. Step 3: Cross multiply
    96,300x = 144,478.80 × 40,900.32
  4. Step 4: Simplify right side
    96,300x = 5,909,229,153.22
  5. Step 5: Solve for x
    x = 5,909,229,153.22/96,300
  6. Step 6: Final answer
    x = 61,362.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.