Home / 53,421.04-80,125.44-13,981.96

Finding the Fourth Proportional to 53,421.04, 80,125.44 and 13,981.96

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Solution

The fourth proportional to 53,421.04, 80,125.44 and 13,981.96 is: 20,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,421.04 : 80,125.44 = 13,981.96 : x
  2. Step 2: Convert to fraction form
    53,421.04/80,125.44 = 13,981.96/x
  3. Step 3: Cross multiply
    53,421.04x = 80,125.44 × 13,981.96
  4. Step 4: Simplify right side
    53,421.04x = 1,120,310,697.06
  5. Step 5: Solve for x
    x = 1,120,310,697.06/53,421.04
  6. Step 6: Final answer
    x = 20,971.34

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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.