Home / 74,037.12-102,171.12-40,503.12

Finding the Fourth Proportional to 74,037.12, 102,171.12 and 40,503.12

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Solution

The fourth proportional to 74,037.12, 102,171.12 and 40,503.12 is: 55,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,037.12 : 102,171.12 = 40,503.12 : x
  2. Step 2: Convert to fraction form
    74,037.12/102,171.12 = 40,503.12/x
  3. Step 3: Cross multiply
    74,037.12x = 102,171.12 × 40,503.12
  4. Step 4: Simplify right side
    74,037.12x = 4,138,249,133.89
  5. Step 5: Solve for x
    x = 4,138,249,133.89/74,037.12
  6. Step 6: Final answer
    x = 55,894.25

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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.