Home / 55,378.07-76,421.84-30,227.57

Finding the Fourth Proportional to 55,378.07, 76,421.84 and 30,227.57

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Solution

The fourth proportional to 55,378.07, 76,421.84 and 30,227.57 is: 41,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.07 : 76,421.84 = 30,227.57 : x
  2. Step 2: Convert to fraction form
    55,378.07/76,421.84 = 30,227.57/x
  3. Step 3: Cross multiply
    55,378.07x = 76,421.84 × 30,227.57
  4. Step 4: Simplify right side
    55,378.07x = 2,310,046,518.13
  5. Step 5: Solve for x
    x = 2,310,046,518.13/55,378.07
  6. Step 6: Final answer
    x = 41,714.10

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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.