Home / 213,531.09-320,292.59-63,771.81

Finding the Fourth Proportional to 213,531.09, 320,292.59 and 63,771.81

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Solution

The fourth proportional to 213,531.09, 320,292.59 and 63,771.81 is: 95,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,531.09 : 320,292.59 = 63,771.81 : x
  2. Step 2: Convert to fraction form
    213,531.09/320,292.59 = 63,771.81/x
  3. Step 3: Cross multiply
    213,531.09x = 320,292.59 × 63,771.81
  4. Step 4: Simplify right side
    213,531.09x = 20,425,637,875.03
  5. Step 5: Solve for x
    x = 20,425,637,875.03/213,531.09
  6. Step 6: Final answer
    x = 95,656.51

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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.