Home / 40,415.20-55,779.57-30,836.95

Finding the Fourth Proportional to 40,415.20, 55,779.57 and 30,836.95

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Solution

The fourth proportional to 40,415.20, 55,779.57 and 30,836.95 is: 42,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,415.20 : 55,779.57 = 30,836.95 : x
  2. Step 2: Convert to fraction form
    40,415.20/55,779.57 = 30,836.95/x
  3. Step 3: Cross multiply
    40,415.20x = 55,779.57 × 30,836.95
  4. Step 4: Simplify right side
    40,415.20x = 1,720,071,671.66
  5. Step 5: Solve for x
    x = 1,720,071,671.66/40,415.20
  6. Step 6: Final answer
    x = 42,560.02

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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.