Home / 55,605.12-76,732.56-30,454.08

Finding the Fourth Proportional to 55,605.12, 76,732.56 and 30,454.08

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Solution

The fourth proportional to 55,605.12, 76,732.56 and 30,454.08 is: 42,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,605.12 : 76,732.56 = 30,454.08 : x
  2. Step 2: Convert to fraction form
    55,605.12/76,732.56 = 30,454.08/x
  3. Step 3: Cross multiply
    55,605.12x = 76,732.56 × 30,454.08
  4. Step 4: Simplify right side
    55,605.12x = 2,336,819,520.84
  5. Step 5: Solve for x
    x = 2,336,819,520.84/55,605.12
  6. Step 6: Final answer
    x = 42,025.26

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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.