Home / 212,053.26-318,079.70-54,281.46

Finding the Fourth Proportional to 212,053.26, 318,079.70 and 54,281.46

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Solution

The fourth proportional to 212,053.26, 318,079.70 and 54,281.46 is: 81,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,053.26 : 318,079.70 = 54,281.46 : x
  2. Step 2: Convert to fraction form
    212,053.26/318,079.70 = 54,281.46/x
  3. Step 3: Cross multiply
    212,053.26x = 318,079.70 × 54,281.46
  4. Step 4: Simplify right side
    212,053.26x = 17,265,830,512.36
  5. Step 5: Solve for x
    x = 17,265,830,512.36/212,053.26
  6. Step 6: Final answer
    x = 81,422.14

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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.