Home / 71,165.39-98,197.75-40,538.75

Finding the Fourth Proportional to 71,165.39, 98,197.75 and 40,538.75

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Solution

The fourth proportional to 71,165.39, 98,197.75 and 40,538.75 is: 55,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,165.39 : 98,197.75 = 40,538.75 : x
  2. Step 2: Convert to fraction form
    71,165.39/98,197.75 = 40,538.75/x
  3. Step 3: Cross multiply
    71,165.39x = 98,197.75 × 40,538.75
  4. Step 4: Simplify right side
    71,165.39x = 3,980,814,037.81
  5. Step 5: Solve for x
    x = 3,980,814,037.81/71,165.39
  6. Step 6: Final answer
    x = 55,937.50

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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.