Home / 55,683.12-76,842.48-30,532.56

Finding the Fourth Proportional to 55,683.12, 76,842.48 and 30,532.56

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Solution

The fourth proportional to 55,683.12, 76,842.48 and 30,532.56 is: 42,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,683.12 : 76,842.48 = 30,532.56 : x
  2. Step 2: Convert to fraction form
    55,683.12/76,842.48 = 30,532.56/x
  3. Step 3: Cross multiply
    55,683.12x = 76,842.48 × 30,532.56
  4. Step 4: Simplify right side
    55,683.12x = 2,346,197,631.15
  5. Step 5: Solve for x
    x = 2,346,197,631.15/55,683.12
  6. Step 6: Final answer
    x = 42,134.81

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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.