Home / 84,860.42-127,307.01-28,709.66

Finding the Fourth Proportional to 84,860.42, 127,307.01 and 28,709.66

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Solution

The fourth proportional to 84,860.42, 127,307.01 and 28,709.66 is: 43,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,860.42 : 127,307.01 = 28,709.66 : x
  2. Step 2: Convert to fraction form
    84,860.42/127,307.01 = 28,709.66/x
  3. Step 3: Cross multiply
    84,860.42x = 127,307.01 × 28,709.66
  4. Step 4: Simplify right side
    84,860.42x = 3,654,940,336.18
  5. Step 5: Solve for x
    x = 3,654,940,336.18/84,860.42
  6. Step 6: Final answer
    x = 43,070.03

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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.