Home / 74,517.18-102,825.08-42,684.18

Finding the Fourth Proportional to 74,517.18, 102,825.08 and 42,684.18

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Solution

The fourth proportional to 74,517.18, 102,825.08 and 42,684.18 is: 58,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,517.18 : 102,825.08 = 42,684.18 : x
  2. Step 2: Convert to fraction form
    74,517.18/102,825.08 = 42,684.18/x
  3. Step 3: Cross multiply
    74,517.18x = 102,825.08 × 42,684.18
  4. Step 4: Simplify right side
    74,517.18x = 4,389,004,223.23
  5. Step 5: Solve for x
    x = 4,389,004,223.23/74,517.18
  6. Step 6: Final answer
    x = 58,899.23

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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.