Home / 48,484.42-72,718.38-13,415.86

Finding the Fourth Proportional to 48,484.42, 72,718.38 and 13,415.86

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Solution

The fourth proportional to 48,484.42, 72,718.38 and 13,415.86 is: 20,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,484.42 : 72,718.38 = 13,415.86 : x
  2. Step 2: Convert to fraction form
    48,484.42/72,718.38 = 13,415.86/x
  3. Step 3: Cross multiply
    48,484.42x = 72,718.38 × 13,415.86
  4. Step 4: Simplify right side
    48,484.42x = 975,579,605.51
  5. Step 5: Solve for x
    x = 975,579,605.51/48,484.42
  6. Step 6: Final answer
    x = 20,121.51

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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.