Home / 100,050.54-138,052.59-59,780.46

Finding the Fourth Proportional to 100,050.54, 138,052.59 and 59,780.46

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Solution

The fourth proportional to 100,050.54, 138,052.59 and 59,780.46 is: 82,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,050.54 : 138,052.59 = 59,780.46 : x
  2. Step 2: Convert to fraction form
    100,050.54/138,052.59 = 59,780.46/x
  3. Step 3: Cross multiply
    100,050.54x = 138,052.59 × 59,780.46
  4. Step 4: Simplify right side
    100,050.54x = 8,252,847,334.39
  5. Step 5: Solve for x
    x = 8,252,847,334.39/100,050.54
  6. Step 6: Final answer
    x = 82,486.78

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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.