Home / 85,125.19-127,621.57-55,075.94

Finding the Fourth Proportional to 85,125.19, 127,621.57 and 55,075.94

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Solution

The fourth proportional to 85,125.19, 127,621.57 and 55,075.94 is: 82,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,125.19 : 127,621.57 = 55,075.94 : x
  2. Step 2: Convert to fraction form
    85,125.19/127,621.57 = 55,075.94/x
  3. Step 3: Cross multiply
    85,125.19x = 127,621.57 × 55,075.94
  4. Step 4: Simplify right side
    85,125.19x = 7,028,878,487.93
  5. Step 5: Solve for x
    x = 7,028,878,487.93/85,125.19
  6. Step 6: Final answer
    x = 82,571.07

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1.5x scale

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.