Home / 74,431.25-102,715.13-40,897.25

Finding the Fourth Proportional to 74,431.25, 102,715.13 and 40,897.25

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Solution

The fourth proportional to 74,431.25, 102,715.13 and 40,897.25 is: 56,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431.25 : 102,715.13 = 40,897.25 : x
  2. Step 2: Convert to fraction form
    74,431.25/102,715.13 = 40,897.25/x
  3. Step 3: Cross multiply
    74,431.25x = 102,715.13 × 40,897.25
  4. Step 4: Simplify right side
    74,431.25x = 4,200,766,350.39
  5. Step 5: Solve for x
    x = 4,200,766,350.39/74,431.25
  6. Step 6: Final answer
    x = 56,438.21

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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.