Home / 79,946.32-119,920.56-30,017.20

Finding the Fourth Proportional to 79,946.32, 119,920.56 and 30,017.20

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Solution

The fourth proportional to 79,946.32, 119,920.56 and 30,017.20 is: 45,026.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,946.32 : 119,920.56 = 30,017.20 : x
  2. Step 2: Convert to fraction form
    79,946.32/119,920.56 = 30,017.20/x
  3. Step 3: Cross multiply
    79,946.32x = 119,920.56 × 30,017.20
  4. Step 4: Simplify right side
    79,946.32x = 3,599,679,433.63
  5. Step 5: Solve for x
    x = 3,599,679,433.63/79,946.32
  6. Step 6: Final answer
    x = 45,026.21

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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.