Home / 72,075.36-99,532.44-68,148.48

Finding the Fourth Proportional to 72,075.36, 99,532.44 and 68,148.48

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Solution

The fourth proportional to 72,075.36, 99,532.44 and 68,148.48 is: 94,109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,075.36 : 99,532.44 = 68,148.48 : x
  2. Step 2: Convert to fraction form
    72,075.36/99,532.44 = 68,148.48/x
  3. Step 3: Cross multiply
    72,075.36x = 99,532.44 × 68,148.48
  4. Step 4: Simplify right side
    72,075.36x = 6,782,984,496.69
  5. Step 5: Solve for x
    x = 6,782,984,496.69/72,075.36
  6. Step 6: Final answer
    x = 94,109.62

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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.