Home / 85,307.50-127,961.14-37,911.56

Finding the Fourth Proportional to 85,307.50, 127,961.14 and 37,911.56

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Solution

The fourth proportional to 85,307.50, 127,961.14 and 37,911.56 is: 56,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,307.50 : 127,961.14 = 37,911.56 : x
  2. Step 2: Convert to fraction form
    85,307.50/127,961.14 = 37,911.56/x
  3. Step 3: Cross multiply
    85,307.50x = 127,961.14 × 37,911.56
  4. Step 4: Simplify right side
    85,307.50x = 4,851,206,599.69
  5. Step 5: Solve for x
    x = 4,851,206,599.69/85,307.50
  6. Step 6: Final answer
    x = 56,867.30

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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.