Home / 80,286.36-120,265.86-38,038.38

Finding the Fourth Proportional to 80,286.36, 120,265.86 and 38,038.38

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Solution

The fourth proportional to 80,286.36, 120,265.86 and 38,038.38 is: 56,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,286.36 : 120,265.86 = 38,038.38 : x
  2. Step 2: Convert to fraction form
    80,286.36/120,265.86 = 38,038.38/x
  3. Step 3: Cross multiply
    80,286.36x = 120,265.86 × 38,038.38
  4. Step 4: Simplify right side
    80,286.36x = 4,574,718,483.71
  5. Step 5: Solve for x
    x = 4,574,718,483.71/80,286.36
  6. Step 6: Final answer
    x = 56,980.02

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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.