Home / 213,634.40-320,423.76-55,875.02

Finding the Fourth Proportional to 213,634.40, 320,423.76 and 55,875.02

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Solution

The fourth proportional to 213,634.40, 320,423.76 and 55,875.02 is: 83,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,634.40 : 320,423.76 = 55,875.02 : x
  2. Step 2: Convert to fraction form
    213,634.40/320,423.76 = 55,875.02/x
  3. Step 3: Cross multiply
    213,634.40x = 320,423.76 × 55,875.02
  4. Step 4: Simplify right side
    213,634.40x = 17,903,683,998.48
  5. Step 5: Solve for x
    x = 17,903,683,998.48/213,634.40
  6. Step 6: Final answer
    x = 83,805.25

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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.