Home / 64,918.93-97,368.63-20,539.92

Finding the Fourth Proportional to 64,918.93, 97,368.63 and 20,539.92

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Solution

The fourth proportional to 64,918.93, 97,368.63 and 20,539.92 is: 30,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,918.93 : 97,368.63 = 20,539.92 : x
  2. Step 2: Convert to fraction form
    64,918.93/97,368.63 = 20,539.92/x
  3. Step 3: Cross multiply
    64,918.93x = 97,368.63 × 20,539.92
  4. Step 4: Simplify right side
    64,918.93x = 1,999,943,589.73
  5. Step 5: Solve for x
    x = 1,999,943,589.73/64,918.93
  6. Step 6: Final answer
    x = 30,806.79

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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.