Home / 82,703.04-123,980.64-30,075.44

Finding the Fourth Proportional to 82,703.04, 123,980.64 and 30,075.44

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Solution

The fourth proportional to 82,703.04, 123,980.64 and 30,075.44 is: 45,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,703.04 : 123,980.64 = 30,075.44 : x
  2. Step 2: Convert to fraction form
    82,703.04/123,980.64 = 30,075.44/x
  3. Step 3: Cross multiply
    82,703.04x = 123,980.64 × 30,075.44
  4. Step 4: Simplify right side
    82,703.04x = 3,728,772,299.48
  5. Step 5: Solve for x
    x = 3,728,772,299.48/82,703.04
  6. Step 6: Final answer
    x = 45,086.28

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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.