Home / 74,574.80-111,901.20-30,206.24

Finding the Fourth Proportional to 74,574.80, 111,901.20 and 30,206.24

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Solution

The fourth proportional to 74,574.80, 111,901.20 and 30,206.24 is: 45,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,574.80 : 111,901.20 = 30,206.24 : x
  2. Step 2: Convert to fraction form
    74,574.80/111,901.20 = 30,206.24/x
  3. Step 3: Cross multiply
    74,574.80x = 111,901.20 × 30,206.24
  4. Step 4: Simplify right side
    74,574.80x = 3,380,114,503.49
  5. Step 5: Solve for x
    x = 3,380,114,503.49/74,574.80
  6. Step 6: Final answer
    x = 45,325.16

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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.