Home / 53,935.40-80,914.77-20,655.47

Finding the Fourth Proportional to 53,935.40, 80,914.77 and 20,655.47

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Solution

The fourth proportional to 53,935.40, 80,914.77 and 20,655.47 is: 30,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,935.40 : 80,914.77 = 20,655.47 : x
  2. Step 2: Convert to fraction form
    53,935.40/80,914.77 = 20,655.47/x
  3. Step 3: Cross multiply
    53,935.40x = 80,914.77 × 20,655.47
  4. Step 4: Simplify right side
    53,935.40x = 1,671,332,199.72
  5. Step 5: Solve for x
    x = 1,671,332,199.72/53,935.40
  6. Step 6: Final answer
    x = 30,987.67

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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.