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Finding the Fourth Proportional to 58,380, 87,551.52 and 18,927.92

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Solution

The fourth proportional to 58,380, 87,551.52 and 18,927.92 is: 28,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,380 : 87,551.52 = 18,927.92 : x
  2. Step 2: Convert to fraction form
    58,380/87,551.52 = 18,927.92/x
  3. Step 3: Cross multiply
    58,380x = 87,551.52 × 18,927.92
  4. Step 4: Simplify right side
    58,380x = 1,657,168,166.44
  5. Step 5: Solve for x
    x = 1,657,168,166.44/58,380
  6. Step 6: Final answer
    x = 28,385.89

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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.