Home / 55,982.80-77,255.09-30,489.61

Finding the Fourth Proportional to 55,982.80, 77,255.09 and 30,489.61

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Solution

The fourth proportional to 55,982.80, 77,255.09 and 30,489.61 is: 42,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,982.80 : 77,255.09 = 30,489.61 : x
  2. Step 2: Convert to fraction form
    55,982.80/77,255.09 = 30,489.61/x
  3. Step 3: Cross multiply
    55,982.80x = 77,255.09 × 30,489.61
  4. Step 4: Simplify right side
    55,982.80x = 2,355,477,509.65
  5. Step 5: Solve for x
    x = 2,355,477,509.65/55,982.80
  6. Step 6: Final answer
    x = 42,075.02

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1.5x scale

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.