Home / 65,608.95-98,429.05-21,235.71

Finding the Fourth Proportional to 65,608.95, 98,429.05 and 21,235.71

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Solution

The fourth proportional to 65,608.95, 98,429.05 and 21,235.71 is: 31,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.95 : 98,429.05 = 21,235.71 : x
  2. Step 2: Convert to fraction form
    65,608.95/98,429.05 = 21,235.71/x
  3. Step 3: Cross multiply
    65,608.95x = 98,429.05 × 21,235.71
  4. Step 4: Simplify right side
    65,608.95x = 2,090,210,708.29
  5. Step 5: Solve for x
    x = 2,090,210,708.29/65,608.95
  6. Step 6: Final answer
    x = 31,858.62

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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.