Home / 58,282-87,438.36-20,845.78

Finding the Fourth Proportional to 58,282, 87,438.36 and 20,845.78

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Solution

The fourth proportional to 58,282, 87,438.36 and 20,845.78 is: 31,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,282 : 87,438.36 = 20,845.78 : x
  2. Step 2: Convert to fraction form
    58,282/87,438.36 = 20,845.78/x
  3. Step 3: Cross multiply
    58,282x = 87,438.36 × 20,845.78
  4. Step 4: Simplify right side
    58,282x = 1,822,720,816.12
  5. Step 5: Solve for x
    x = 1,822,720,816.12/58,282
  6. Step 6: Final answer
    x = 31,274.16

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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.