Home / 53,615.49-80,341.20-28,659.09

Finding the Fourth Proportional to 53,615.49, 80,341.20 and 28,659.09

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Solution

The fourth proportional to 53,615.49, 80,341.20 and 28,659.09 is: 42,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,615.49 : 80,341.20 = 28,659.09 : x
  2. Step 2: Convert to fraction form
    53,615.49/80,341.20 = 28,659.09/x
  3. Step 3: Cross multiply
    53,615.49x = 80,341.20 × 28,659.09
  4. Step 4: Simplify right side
    53,615.49x = 2,302,505,681.51
  5. Step 5: Solve for x
    x = 2,302,505,681.51/53,615.49
  6. Step 6: Final answer
    x = 42,944.78

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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.