Home / 40,075.74-55,303.20-22,170.78

Finding the Fourth Proportional to 40,075.74, 55,303.20 and 22,170.78

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Solution

The fourth proportional to 40,075.74, 55,303.20 and 22,170.78 is: 30,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,075.74 : 55,303.20 = 22,170.78 : x
  2. Step 2: Convert to fraction form
    40,075.74/55,303.20 = 22,170.78/x
  3. Step 3: Cross multiply
    40,075.74x = 55,303.20 × 22,170.78
  4. Step 4: Simplify right side
    40,075.74x = 1,226,115,080.50
  5. Step 5: Solve for x
    x = 1,226,115,080.50/40,075.74
  6. Step 6: Final answer
    x = 30,594.95

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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.