Home / 84,749.10-127,119.60-28,583.70

Finding the Fourth Proportional to 84,749.10, 127,119.60 and 28,583.70

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Solution

The fourth proportional to 84,749.10, 127,119.60 and 28,583.70 is: 42,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,749.10 : 127,119.60 = 28,583.70 : x
  2. Step 2: Convert to fraction form
    84,749.10/127,119.60 = 28,583.70/x
  3. Step 3: Cross multiply
    84,749.10x = 127,119.60 × 28,583.70
  4. Step 4: Simplify right side
    84,749.10x = 3,633,548,510.52
  5. Step 5: Solve for x
    x = 3,633,548,510.52/84,749.10
  6. Step 6: Final answer
    x = 42,874.18

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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.