Home / 213,637.30-320,431.65-55,881.70

Finding the Fourth Proportional to 213,637.30, 320,431.65 and 55,881.70

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Solution

The fourth proportional to 213,637.30, 320,431.65 and 55,881.70 is: 83,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,637.30 : 320,431.65 = 55,881.70 : x
  2. Step 2: Convert to fraction form
    213,637.30/320,431.65 = 55,881.70/x
  3. Step 3: Cross multiply
    213,637.30x = 320,431.65 × 55,881.70
  4. Step 4: Simplify right side
    213,637.30x = 17,906,265,335.81
  5. Step 5: Solve for x
    x = 17,906,265,335.81/213,637.30
  6. Step 6: Final answer
    x = 83,816.19

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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.