Home / 72,786.08-100,444.60-40,955.04

Finding the Fourth Proportional to 72,786.08, 100,444.60 and 40,955.04

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Solution

The fourth proportional to 72,786.08, 100,444.60 and 40,955.04 is: 56,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,786.08 : 100,444.60 = 40,955.04 : x
  2. Step 2: Convert to fraction form
    72,786.08/100,444.60 = 40,955.04/x
  3. Step 3: Cross multiply
    72,786.08x = 100,444.60 × 40,955.04
  4. Step 4: Simplify right side
    72,786.08x = 4,113,712,610.78
  5. Step 5: Solve for x
    x = 4,113,712,610.78/72,786.08
  6. Step 6: Final answer
    x = 56,517.85

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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.