Home / 47,718.77-71,572.68-12,661.16

Finding the Fourth Proportional to 47,718.77, 71,572.68 and 12,661.16

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Solution

The fourth proportional to 47,718.77, 71,572.68 and 12,661.16 is: 18,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,718.77 : 71,572.68 = 12,661.16 : x
  2. Step 2: Convert to fraction form
    47,718.77/71,572.68 = 12,661.16/x
  3. Step 3: Cross multiply
    47,718.77x = 71,572.68 × 12,661.16
  4. Step 4: Simplify right side
    47,718.77x = 906,192,795.25
  5. Step 5: Solve for x
    x = 906,192,795.25/47,718.77
  6. Step 6: Final answer
    x = 18,990.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.