Home / 74,062.12-102,205.50-40,528.12

Finding the Fourth Proportional to 74,062.12, 102,205.50 and 40,528.12

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Solution

The fourth proportional to 74,062.12, 102,205.50 and 40,528.12 is: 55,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.12 : 102,205.50 = 40,528.12 : x
  2. Step 2: Convert to fraction form
    74,062.12/102,205.50 = 40,528.12/x
  3. Step 3: Cross multiply
    74,062.12x = 102,205.50 × 40,528.12
  4. Step 4: Simplify right side
    74,062.12x = 4,142,196,768.66
  5. Step 5: Solve for x
    x = 4,142,196,768.66/74,062.12
  6. Step 6: Final answer
    x = 55,928.68

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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.