Home / 53,539.29-80,309.75-20,275.02

Finding the Fourth Proportional to 53,539.29, 80,309.75 and 20,275.02

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Solution

The fourth proportional to 53,539.29, 80,309.75 and 20,275.02 is: 30,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,539.29 : 80,309.75 = 20,275.02 : x
  2. Step 2: Convert to fraction form
    53,539.29/80,309.75 = 20,275.02/x
  3. Step 3: Cross multiply
    53,539.29x = 80,309.75 × 20,275.02
  4. Step 4: Simplify right side
    53,539.29x = 1,628,281,686.07
  5. Step 5: Solve for x
    x = 1,628,281,686.07/53,539.29
  6. Step 6: Final answer
    x = 30,412.84

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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.