Home / 53,470.30-80,212.65-18,420.70

Finding the Fourth Proportional to 53,470.30, 80,212.65 and 18,420.70

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Solution

The fourth proportional to 53,470.30, 80,212.65 and 18,420.70 is: 27,633.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,470.30 : 80,212.65 = 18,420.70 : x
  2. Step 2: Convert to fraction form
    53,470.30/80,212.65 = 18,420.70/x
  3. Step 3: Cross multiply
    53,470.30x = 80,212.65 × 18,420.70
  4. Step 4: Simplify right side
    53,470.30x = 1,477,573,161.86
  5. Step 5: Solve for x
    x = 1,477,573,161.86/53,470.30
  6. Step 6: Final answer
    x = 27,633.53

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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.