Home / 53,210.71-79,772.32-21,193.03

Finding the Fourth Proportional to 53,210.71, 79,772.32 and 21,193.03

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Solution

The fourth proportional to 53,210.71, 79,772.32 and 21,193.03 is: 31,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,210.71 : 79,772.32 = 21,193.03 : x
  2. Step 2: Convert to fraction form
    53,210.71/79,772.32 = 21,193.03/x
  3. Step 3: Cross multiply
    53,210.71x = 79,772.32 × 21,193.03
  4. Step 4: Simplify right side
    53,210.71x = 1,690,617,170.93
  5. Step 5: Solve for x
    x = 1,690,617,170.93/53,210.71
  6. Step 6: Final answer
    x = 31,772.12

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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.