Home / 55,197.20-82,795.80-42,075.20

Finding the Fourth Proportional to 55,197.20, 82,795.80 and 42,075.20

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Solution

The fourth proportional to 55,197.20, 82,795.80 and 42,075.20 is: 63,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,197.20 : 82,795.80 = 42,075.20 : x
  2. Step 2: Convert to fraction form
    55,197.20/82,795.80 = 42,075.20/x
  3. Step 3: Cross multiply
    55,197.20x = 82,795.80 × 42,075.20
  4. Step 4: Simplify right side
    55,197.20x = 3,483,649,844.16
  5. Step 5: Solve for x
    x = 3,483,649,844.16/55,197.20
  6. Step 6: Final answer
    x = 63,112.80

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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.