Home / 84,860.43-127,307.07-28,709.69

Finding the Fourth Proportional to 84,860.43, 127,307.07 and 28,709.69

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Solution

The fourth proportional to 84,860.43, 127,307.07 and 28,709.69 is: 43,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,860.43 : 127,307.07 = 28,709.69 : x
  2. Step 2: Convert to fraction form
    84,860.43/127,307.07 = 28,709.69/x
  3. Step 3: Cross multiply
    84,860.43x = 127,307.07 × 28,709.69
  4. Step 4: Simplify right side
    84,860.43x = 3,654,945,877.97
  5. Step 5: Solve for x
    x = 3,654,945,877.97/84,860.43
  6. Step 6: Final answer
    x = 43,070.08

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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.