Home / 74,538.96-102,838.62-42,270.12

Finding the Fourth Proportional to 74,538.96, 102,838.62 and 42,270.12

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Solution

The fourth proportional to 74,538.96, 102,838.62 and 42,270.12 is: 58,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,538.96 : 102,838.62 = 42,270.12 : x
  2. Step 2: Convert to fraction form
    74,538.96/102,838.62 = 42,270.12/x
  3. Step 3: Cross multiply
    74,538.96x = 102,838.62 × 42,270.12
  4. Step 4: Simplify right side
    74,538.96x = 4,347,000,808.03
  5. Step 5: Solve for x
    x = 4,347,000,808.03/74,538.96
  6. Step 6: Final answer
    x = 58,318.51

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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.