Home / 55,643.45-76,774.23-32,987.75

Finding the Fourth Proportional to 55,643.45, 76,774.23 and 32,987.75

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Solution

The fourth proportional to 55,643.45, 76,774.23 and 32,987.75 is: 45,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.45 : 76,774.23 = 32,987.75 : x
  2. Step 2: Convert to fraction form
    55,643.45/76,774.23 = 32,987.75/x
  3. Step 3: Cross multiply
    55,643.45x = 76,774.23 × 32,987.75
  4. Step 4: Simplify right side
    55,643.45x = 2,532,608,721.81
  5. Step 5: Solve for x
    x = 2,532,608,721.81/55,643.45
  6. Step 6: Final answer
    x = 45,514.95

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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.