Home / 84,705.18-127,069.48-28,561.34

Finding the Fourth Proportional to 84,705.18, 127,069.48 and 28,561.34

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Solution

The fourth proportional to 84,705.18, 127,069.48 and 28,561.34 is: 42,845.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,705.18 : 127,069.48 = 28,561.34 : x
  2. Step 2: Convert to fraction form
    84,705.18/127,069.48 = 28,561.34/x
  3. Step 3: Cross multiply
    84,705.18x = 127,069.48 × 28,561.34
  4. Step 4: Simplify right side
    84,705.18x = 3,629,274,479.10
  5. Step 5: Solve for x
    x = 3,629,274,479.10/84,705.18
  6. Step 6: Final answer
    x = 42,845.96

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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.