Home / 53,811.60-80,698.20-18,752.40

Finding the Fourth Proportional to 53,811.60, 80,698.20 and 18,752.40

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Solution

The fourth proportional to 53,811.60, 80,698.20 and 18,752.40 is: 28,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,811.60 : 80,698.20 = 18,752.40 : x
  2. Step 2: Convert to fraction form
    53,811.60/80,698.20 = 18,752.40/x
  3. Step 3: Cross multiply
    53,811.60x = 80,698.20 × 18,752.40
  4. Step 4: Simplify right side
    53,811.60x = 1,513,284,925.68
  5. Step 5: Solve for x
    x = 1,513,284,925.68/53,811.60
  6. Step 6: Final answer
    x = 28,121.91

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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.