Home / 39,763.20-54,878.40-25,657.08

Finding the Fourth Proportional to 39,763.20, 54,878.40 and 25,657.08

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Solution

The fourth proportional to 39,763.20, 54,878.40 and 25,657.08 is: 35,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.20 : 54,878.40 = 25,657.08 : x
  2. Step 2: Convert to fraction form
    39,763.20/54,878.40 = 25,657.08/x
  3. Step 3: Cross multiply
    39,763.20x = 54,878.40 × 25,657.08
  4. Step 4: Simplify right side
    39,763.20x = 1,408,019,499.07
  5. Step 5: Solve for x
    x = 1,408,019,499.07/39,763.20
  6. Step 6: Final answer
    x = 35,410.12

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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.