Home / 53,718.47-80,577.72-20,430.84

Finding the Fourth Proportional to 53,718.47, 80,577.72 and 20,430.84

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Solution

The fourth proportional to 53,718.47, 80,577.72 and 20,430.84 is: 30,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,718.47 : 80,577.72 = 20,430.84 : x
  2. Step 2: Convert to fraction form
    53,718.47/80,577.72 = 20,430.84/x
  3. Step 3: Cross multiply
    53,718.47x = 80,577.72 × 20,430.84
  4. Step 4: Simplify right side
    53,718.47x = 1,646,270,504.88
  5. Step 5: Solve for x
    x = 1,646,270,504.88/53,718.47
  6. Step 6: Final answer
    x = 30,646.27

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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.