Home / 96,821.80-145,232.81-30,262.28

Finding the Fourth Proportional to 96,821.80, 145,232.81 and 30,262.28

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Solution

The fourth proportional to 96,821.80, 145,232.81 and 30,262.28 is: 45,393.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,821.80 : 145,232.81 = 30,262.28 : x
  2. Step 2: Convert to fraction form
    96,821.80/145,232.81 = 30,262.28/x
  3. Step 3: Cross multiply
    96,821.80x = 145,232.81 × 30,262.28
  4. Step 4: Simplify right side
    96,821.80x = 4,395,075,961.41
  5. Step 5: Solve for x
    x = 4,395,075,961.41/96,821.80
  6. Step 6: Final answer
    x = 45,393.45

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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.