Home / 83,556.78-115,307.73-45,830.76

Finding the Fourth Proportional to 83,556.78, 115,307.73 and 45,830.76

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Solution

The fourth proportional to 83,556.78, 115,307.73 and 45,830.76 is: 63,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,556.78 : 115,307.73 = 45,830.76 : x
  2. Step 2: Convert to fraction form
    83,556.78/115,307.73 = 45,830.76/x
  3. Step 3: Cross multiply
    83,556.78x = 115,307.73 × 45,830.76
  4. Step 4: Simplify right side
    83,556.78x = 5,284,640,899.77
  5. Step 5: Solve for x
    x = 5,284,640,899.77/83,556.78
  6. Step 6: Final answer
    x = 63,246.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.