Home / 42,372.80-63,559.20-25,765.40

Finding the Fourth Proportional to 42,372.80, 63,559.20 and 25,765.40

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Solution

The fourth proportional to 42,372.80, 63,559.20 and 25,765.40 is: 38,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,372.80 : 63,559.20 = 25,765.40 : x
  2. Step 2: Convert to fraction form
    42,372.80/63,559.20 = 25,765.40/x
  3. Step 3: Cross multiply
    42,372.80x = 63,559.20 × 25,765.40
  4. Step 4: Simplify right side
    42,372.80x = 1,637,628,211.68
  5. Step 5: Solve for x
    x = 1,637,628,211.68/42,372.80
  6. Step 6: Final answer
    x = 38,648.10

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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.