Home / 81,422.63-112,330.88-50,777.70

Finding the Fourth Proportional to 81,422.63, 112,330.88 and 50,777.70

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Solution

The fourth proportional to 81,422.63, 112,330.88 and 50,777.70 is: 70,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,422.63 : 112,330.88 = 50,777.70 : x
  2. Step 2: Convert to fraction form
    81,422.63/112,330.88 = 50,777.70/x
  3. Step 3: Cross multiply
    81,422.63x = 112,330.88 × 50,777.70
  4. Step 4: Simplify right side
    81,422.63x = 5,703,903,725.38
  5. Step 5: Solve for x
    x = 5,703,903,725.38/81,422.63
  6. Step 6: Final answer
    x = 70,053.05

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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.