Home / 47,947.20-66,146.40-33,017.28

Finding the Fourth Proportional to 47,947.20, 66,146.40 and 33,017.28

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Solution

The fourth proportional to 47,947.20, 66,146.40 and 33,017.28 is: 45,549.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,947.20 : 66,146.40 = 33,017.28 : x
  2. Step 2: Convert to fraction form
    47,947.20/66,146.40 = 33,017.28/x
  3. Step 3: Cross multiply
    47,947.20x = 66,146.40 × 33,017.28
  4. Step 4: Simplify right side
    47,947.20x = 2,183,974,209.79
  5. Step 5: Solve for x
    x = 2,183,974,209.79/47,947.20
  6. Step 6: Final answer
    x = 45,549.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.