Home / 75,881.10-113,821.65-36,515.10

Finding the Fourth Proportional to 75,881.10, 113,821.65 and 36,515.10

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Solution

The fourth proportional to 75,881.10, 113,821.65 and 36,515.10 is: 54,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,881.10 : 113,821.65 = 36,515.10 : x
  2. Step 2: Convert to fraction form
    75,881.10/113,821.65 = 36,515.10/x
  3. Step 3: Cross multiply
    75,881.10x = 113,821.65 × 36,515.10
  4. Step 4: Simplify right side
    75,881.10x = 4,156,208,931.92
  5. Step 5: Solve for x
    x = 4,156,208,931.92/75,881.10
  6. Step 6: Final answer
    x = 54,772.65

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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.