Home / 48,485.92-72,720.64-13,417.38

Finding the Fourth Proportional to 48,485.92, 72,720.64 and 13,417.38

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Solution

The fourth proportional to 48,485.92, 72,720.64 and 13,417.38 is: 20,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,485.92 : 72,720.64 = 13,417.38 : x
  2. Step 2: Convert to fraction form
    48,485.92/72,720.64 = 13,417.38/x
  3. Step 3: Cross multiply
    48,485.92x = 72,720.64 × 13,417.38
  4. Step 4: Simplify right side
    48,485.92x = 975,720,460.72
  5. Step 5: Solve for x
    x = 975,720,460.72/48,485.92
  6. Step 6: Final answer
    x = 20,123.79

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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.