Home / 47,105.20-70,657.80-19,038.70

Finding the Fourth Proportional to 47,105.20, 70,657.80 and 19,038.70

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Solution

The fourth proportional to 47,105.20, 70,657.80 and 19,038.70 is: 28,558.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,105.20 : 70,657.80 = 19,038.70 : x
  2. Step 2: Convert to fraction form
    47,105.20/70,657.80 = 19,038.70/x
  3. Step 3: Cross multiply
    47,105.20x = 70,657.80 × 19,038.70
  4. Step 4: Simplify right side
    47,105.20x = 1,345,232,656.86
  5. Step 5: Solve for x
    x = 1,345,232,656.86/47,105.20
  6. Step 6: Final answer
    x = 28,558.05

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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.