Home / 81,803.28-112,842.42-49,089.23

Finding the Fourth Proportional to 81,803.28, 112,842.42 and 49,089.23

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Solution

The fourth proportional to 81,803.28, 112,842.42 and 49,089.23 is: 67,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,803.28 : 112,842.42 = 49,089.23 : x
  2. Step 2: Convert to fraction form
    81,803.28/112,842.42 = 49,089.23/x
  3. Step 3: Cross multiply
    81,803.28x = 112,842.42 × 49,089.23
  4. Step 4: Simplify right side
    81,803.28x = 5,539,347,915.56
  5. Step 5: Solve for x
    x = 5,539,347,915.56/81,803.28
  6. Step 6: Final answer
    x = 67,715.47

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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.