Home / 48,386.57-72,561.20-18,800.51

Finding the Fourth Proportional to 48,386.57, 72,561.20 and 18,800.51

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Solution

The fourth proportional to 48,386.57, 72,561.20 and 18,800.51 is: 28,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,386.57 : 72,561.20 = 18,800.51 : x
  2. Step 2: Convert to fraction form
    48,386.57/72,561.20 = 18,800.51/x
  3. Step 3: Cross multiply
    48,386.57x = 72,561.20 × 18,800.51
  4. Step 4: Simplify right side
    48,386.57x = 1,364,187,472.21
  5. Step 5: Solve for x
    x = 1,364,187,472.21/48,386.57
  6. Step 6: Final answer
    x = 28,193.51

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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.