Home / 55,653.03-76,759.11-38,657.21

Finding the Fourth Proportional to 55,653.03, 76,759.11 and 38,657.21

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Solution

The fourth proportional to 55,653.03, 76,759.11 and 38,657.21 is: 53,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.03 : 76,759.11 = 38,657.21 : x
  2. Step 2: Convert to fraction form
    55,653.03/76,759.11 = 38,657.21/x
  3. Step 3: Cross multiply
    55,653.03x = 76,759.11 × 38,657.21
  4. Step 4: Simplify right side
    55,653.03x = 2,967,292,650.89
  5. Step 5: Solve for x
    x = 2,967,292,650.89/55,653.03
  6. Step 6: Final answer
    x = 53,317.72

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1.5x scale

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.