Home / 55,167.12-76,132.20-30,018.32

Finding the Fourth Proportional to 55,167.12, 76,132.20 and 30,018.32

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Solution

The fourth proportional to 55,167.12, 76,132.20 and 30,018.32 is: 41,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,167.12 : 76,132.20 = 30,018.32 : x
  2. Step 2: Convert to fraction form
    55,167.12/76,132.20 = 30,018.32/x
  3. Step 3: Cross multiply
    55,167.12x = 76,132.20 × 30,018.32
  4. Step 4: Simplify right side
    55,167.12x = 2,285,360,741.90
  5. Step 5: Solve for x
    x = 2,285,360,741.90/55,167.12
  6. Step 6: Final answer
    x = 41,426.14

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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.