Home / 58,442.27-87,644.77-18,989.87

Finding the Fourth Proportional to 58,442.27, 87,644.77 and 18,989.87

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Solution

The fourth proportional to 58,442.27, 87,644.77 and 18,989.87 is: 28,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,442.27 : 87,644.77 = 18,989.87 : x
  2. Step 2: Convert to fraction form
    58,442.27/87,644.77 = 18,989.87/x
  3. Step 3: Cross multiply
    58,442.27x = 87,644.77 × 18,989.87
  4. Step 4: Simplify right side
    58,442.27x = 1,664,362,302.78
  5. Step 5: Solve for x
    x = 1,664,362,302.78/58,442.27
  6. Step 6: Final answer
    x = 28,478.74

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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.