Home / 76,467.60-114,701.40-20,307.60

Finding the Fourth Proportional to 76,467.60, 114,701.40 and 20,307.60

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Solution

The fourth proportional to 76,467.60, 114,701.40 and 20,307.60 is: 30,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,467.60 : 114,701.40 = 20,307.60 : x
  2. Step 2: Convert to fraction form
    76,467.60/114,701.40 = 20,307.60/x
  3. Step 3: Cross multiply
    76,467.60x = 114,701.40 × 20,307.60
  4. Step 4: Simplify right side
    76,467.60x = 2,329,310,150.64
  5. Step 5: Solve for x
    x = 2,329,310,150.64/76,467.60
  6. Step 6: Final answer
    x = 30,461.40

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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.