Home / 80,000.47-119,908.32-30,048.68

Finding the Fourth Proportional to 80,000.47, 119,908.32 and 30,048.68

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Solution

The fourth proportional to 80,000.47, 119,908.32 and 30,048.68 is: 45,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,000.47 : 119,908.32 = 30,048.68 : x
  2. Step 2: Convert to fraction form
    80,000.47/119,908.32 = 30,048.68/x
  3. Step 3: Cross multiply
    80,000.47x = 119,908.32 × 30,048.68
  4. Step 4: Simplify right side
    80,000.47x = 3,603,086,924.11
  5. Step 5: Solve for x
    x = 3,603,086,924.11/80,000.47
  6. Step 6: Final answer
    x = 45,038.32

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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.