Home / 48,313.08-66,688.44-30,438

Finding the Fourth Proportional to 48,313.08, 66,688.44 and 30,438

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Solution

The fourth proportional to 48,313.08, 66,688.44 and 30,438 is: 42,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,313.08 : 66,688.44 = 30,438 : x
  2. Step 2: Convert to fraction form
    48,313.08/66,688.44 = 30,438/x
  3. Step 3: Cross multiply
    48,313.08x = 66,688.44 × 30,438
  4. Step 4: Simplify right side
    48,313.08x = 2,029,862,736.72
  5. Step 5: Solve for x
    x = 2,029,862,736.72/48,313.08
  6. Step 6: Final answer
    x = 42,014.77

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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.