Home / 55,288.68-76,299.30-30,139.24

Finding the Fourth Proportional to 55,288.68, 76,299.30 and 30,139.24

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Solution

The fourth proportional to 55,288.68, 76,299.30 and 30,139.24 is: 41,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,288.68 : 76,299.30 = 30,139.24 : x
  2. Step 2: Convert to fraction form
    55,288.68/76,299.30 = 30,139.24/x
  3. Step 3: Cross multiply
    55,288.68x = 76,299.30 × 30,139.24
  4. Step 4: Simplify right side
    55,288.68x = 2,299,602,914.53
  5. Step 5: Solve for x
    x = 2,299,602,914.53/55,288.68
  6. Step 6: Final answer
    x = 41,592.65

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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.