Home / 47,729.80-71,594.70-30,219.40

Finding the Fourth Proportional to 47,729.80, 71,594.70 and 30,219.40

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Solution

The fourth proportional to 47,729.80, 71,594.70 and 30,219.40 is: 45,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,729.80 : 71,594.70 = 30,219.40 : x
  2. Step 2: Convert to fraction form
    47,729.80/71,594.70 = 30,219.40/x
  3. Step 3: Cross multiply
    47,729.80x = 71,594.70 × 30,219.40
  4. Step 4: Simplify right side
    47,729.80x = 2,163,548,877.18
  5. Step 5: Solve for x
    x = 2,163,548,877.18/47,729.80
  6. Step 6: Final answer
    x = 45,329.10

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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.