Home / 53,616.86-80,343.27-28,660.45

Finding the Fourth Proportional to 53,616.86, 80,343.27 and 28,660.45

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Solution

The fourth proportional to 53,616.86, 80,343.27 and 28,660.45 is: 42,946.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,616.86 : 80,343.27 = 28,660.45 : x
  2. Step 2: Convert to fraction form
    53,616.86/80,343.27 = 28,660.45/x
  3. Step 3: Cross multiply
    53,616.86x = 80,343.27 × 28,660.45
  4. Step 4: Simplify right side
    53,616.86x = 2,302,674,272.67
  5. Step 5: Solve for x
    x = 2,302,674,272.67/53,616.86
  6. Step 6: Final answer
    x = 42,946.83

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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.