Home / 74,128.16-102,294.96-41,422.84

Finding the Fourth Proportional to 74,128.16, 102,294.96 and 41,422.84

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Solution

The fourth proportional to 74,128.16, 102,294.96 and 41,422.84 is: 57,162.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,128.16 : 102,294.96 = 41,422.84 : x
  2. Step 2: Convert to fraction form
    74,128.16/102,294.96 = 41,422.84/x
  3. Step 3: Cross multiply
    74,128.16x = 102,294.96 × 41,422.84
  4. Step 4: Simplify right side
    74,128.16x = 4,237,347,760.89
  5. Step 5: Solve for x
    x = 4,237,347,760.89/74,128.16
  6. Step 6: Final answer
    x = 57,162.46

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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.