Home / 55,688.26-76,849.78-30,538.30

Finding the Fourth Proportional to 55,688.26, 76,849.78 and 30,538.30

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Solution

The fourth proportional to 55,688.26, 76,849.78 and 30,538.30 is: 42,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,688.26 : 76,849.78 = 30,538.30 : x
  2. Step 2: Convert to fraction form
    55,688.26/76,849.78 = 30,538.30/x
  3. Step 3: Cross multiply
    55,688.26x = 76,849.78 × 30,538.30
  4. Step 4: Simplify right side
    55,688.26x = 2,346,861,636.57
  5. Step 5: Solve for x
    x = 2,346,861,636.57/55,688.26
  6. Step 6: Final answer
    x = 42,142.84

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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.