Home / 53,688.96-80,570.16-18,628.38

Finding the Fourth Proportional to 53,688.96, 80,570.16 and 18,628.38

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Solution

The fourth proportional to 53,688.96, 80,570.16 and 18,628.38 is: 27,955.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,688.96 : 80,570.16 = 18,628.38 : x
  2. Step 2: Convert to fraction form
    53,688.96/80,570.16 = 18,628.38/x
  3. Step 3: Cross multiply
    53,688.96x = 80,570.16 × 18,628.38
  4. Step 4: Simplify right side
    53,688.96x = 1,500,891,557.14
  5. Step 5: Solve for x
    x = 1,500,891,557.14/53,688.96
  6. Step 6: Final answer
    x = 27,955.31

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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.