Home / 54,971.20-75,860.40-29,820.70

Finding the Fourth Proportional to 54,971.20, 75,860.40 and 29,820.70

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Solution

The fourth proportional to 54,971.20, 75,860.40 and 29,820.70 is: 41,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,971.20 : 75,860.40 = 29,820.70 : x
  2. Step 2: Convert to fraction form
    54,971.20/75,860.40 = 29,820.70/x
  3. Step 3: Cross multiply
    54,971.20x = 75,860.40 × 29,820.70
  4. Step 4: Simplify right side
    54,971.20x = 2,262,209,701.87
  5. Step 5: Solve for x
    x = 2,262,209,701.87/54,971.20
  6. Step 6: Final answer
    x = 41,152.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.