Home / 72,758.09-100,419.95-45,546.82

Finding the Fourth Proportional to 72,758.09, 100,419.95 and 45,546.82

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Solution

The fourth proportional to 72,758.09, 100,419.95 and 45,546.82 is: 62,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,758.09 : 100,419.95 = 45,546.82 : x
  2. Step 2: Convert to fraction form
    72,758.09/100,419.95 = 45,546.82/x
  3. Step 3: Cross multiply
    72,758.09x = 100,419.95 × 45,546.82
  4. Step 4: Simplify right side
    72,758.09x = 4,573,809,387.06
  5. Step 5: Solve for x
    x = 4,573,809,387.06/72,758.09
  6. Step 6: Final answer
    x = 62,863.24

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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.