Home / 65,855.31-98,779.47-18,473.65

Finding the Fourth Proportional to 65,855.31, 98,779.47 and 18,473.65

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Solution

The fourth proportional to 65,855.31, 98,779.47 and 18,473.65 is: 27,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,855.31 : 98,779.47 = 18,473.65 : x
  2. Step 2: Convert to fraction form
    65,855.31/98,779.47 = 18,473.65/x
  3. Step 3: Cross multiply
    65,855.31x = 98,779.47 × 18,473.65
  4. Step 4: Simplify right side
    65,855.31x = 1,824,817,355.97
  5. Step 5: Solve for x
    x = 1,824,817,355.97/65,855.31
  6. Step 6: Final answer
    x = 27,709.49

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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.