Home / 55,018.05-75,926.72-31,144.21

Finding the Fourth Proportional to 55,018.05, 75,926.72 and 31,144.21

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Solution

The fourth proportional to 55,018.05, 75,926.72 and 31,144.21 is: 42,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,018.05 : 75,926.72 = 31,144.21 : x
  2. Step 2: Convert to fraction form
    55,018.05/75,926.72 = 31,144.21/x
  3. Step 3: Cross multiply
    55,018.05x = 75,926.72 × 31,144.21
  4. Step 4: Simplify right side
    55,018.05x = 2,364,677,852.24
  5. Step 5: Solve for x
    x = 2,364,677,852.24/55,018.05
  6. Step 6: Final answer
    x = 42,980.04

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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.