Home / 81,315.42-112,213.49-44,521.56

Finding the Fourth Proportional to 81,315.42, 112,213.49 and 44,521.56

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Solution

The fourth proportional to 81,315.42, 112,213.49 and 44,521.56 is: 61,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,315.42 : 112,213.49 = 44,521.56 : x
  2. Step 2: Convert to fraction form
    81,315.42/112,213.49 = 44,521.56/x
  3. Step 3: Cross multiply
    81,315.42x = 112,213.49 × 44,521.56
  4. Step 4: Simplify right side
    81,315.42x = 4,995,918,844.17
  5. Step 5: Solve for x
    x = 4,995,918,844.17/81,315.42
  6. Step 6: Final answer
    x = 61,438.77

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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.