Home / 55,014.12-75,924.24-31,145.04

Finding the Fourth Proportional to 55,014.12, 75,924.24 and 31,145.04

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Solution

The fourth proportional to 55,014.12, 75,924.24 and 31,145.04 is: 42,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,014.12 : 75,924.24 = 31,145.04 : x
  2. Step 2: Convert to fraction form
    55,014.12/75,924.24 = 31,145.04/x
  3. Step 3: Cross multiply
    55,014.12x = 75,924.24 × 31,145.04
  4. Step 4: Simplify right side
    55,014.12x = 2,364,663,491.77
  5. Step 5: Solve for x
    x = 2,364,663,491.77/55,014.12
  6. Step 6: Final answer
    x = 42,982.85

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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.