Home / 55,716.48-83,602.80-20,659.68

Finding the Fourth Proportional to 55,716.48, 83,602.80 and 20,659.68

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Solution

The fourth proportional to 55,716.48, 83,602.80 and 20,659.68 is: 30,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,716.48 : 83,602.80 = 20,659.68 : x
  2. Step 2: Convert to fraction form
    55,716.48/83,602.80 = 20,659.68/x
  3. Step 3: Cross multiply
    55,716.48x = 83,602.80 × 20,659.68
  4. Step 4: Simplify right side
    55,716.48x = 1,727,207,095.10
  5. Step 5: Solve for x
    x = 1,727,207,095.10/55,716.48
  6. Step 6: Final answer
    x = 30,999.93

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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.