Home / 73,074.12-100,840.35-40,807.85

Finding the Fourth Proportional to 73,074.12, 100,840.35 and 40,807.85

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Solution

The fourth proportional to 73,074.12, 100,840.35 and 40,807.85 is: 56,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,074.12 : 100,840.35 = 40,807.85 : x
  2. Step 2: Convert to fraction form
    73,074.12/100,840.35 = 40,807.85/x
  3. Step 3: Cross multiply
    73,074.12x = 100,840.35 × 40,807.85
  4. Step 4: Simplify right side
    73,074.12x = 4,115,077,219.52
  5. Step 5: Solve for x
    x = 4,115,077,219.52/73,074.12
  6. Step 6: Final answer
    x = 56,313.74

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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.