Home / 84,618.69-126,927.04-20,577.21

Finding the Fourth Proportional to 84,618.69, 126,927.04 and 20,577.21

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Solution

The fourth proportional to 84,618.69, 126,927.04 and 20,577.21 is: 30,865.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,618.69 : 126,927.04 = 20,577.21 : x
  2. Step 2: Convert to fraction form
    84,618.69/126,927.04 = 20,577.21/x
  3. Step 3: Cross multiply
    84,618.69x = 126,927.04 × 20,577.21
  4. Step 4: Simplify right side
    84,618.69x = 2,611,804,356.76
  5. Step 5: Solve for x
    x = 2,611,804,356.76/84,618.69
  6. Step 6: Final answer
    x = 30,865.57

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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.