Home / 55,539.16-76,642.26-30,388.12

Finding the Fourth Proportional to 55,539.16, 76,642.26 and 30,388.12

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Solution

The fourth proportional to 55,539.16, 76,642.26 and 30,388.12 is: 41,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,539.16 : 76,642.26 = 30,388.12 : x
  2. Step 2: Convert to fraction form
    55,539.16/76,642.26 = 30,388.12/x
  3. Step 3: Cross multiply
    55,539.16x = 76,642.26 × 30,388.12
  4. Step 4: Simplify right side
    55,539.16x = 2,329,014,193.95
  5. Step 5: Solve for x
    x = 2,329,014,193.95/55,539.16
  6. Step 6: Final answer
    x = 41,934.63

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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.