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Finding the Fourth Proportional to 58,539.78, 87,818.22 and 19,087.20

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Solution

The fourth proportional to 58,539.78, 87,818.22 and 19,087.20 is: 28,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,539.78 : 87,818.22 = 19,087.20 : x
  2. Step 2: Convert to fraction form
    58,539.78/87,818.22 = 19,087.20/x
  3. Step 3: Cross multiply
    58,539.78x = 87,818.22 × 19,087.20
  4. Step 4: Simplify right side
    58,539.78x = 1,676,203,928.78
  5. Step 5: Solve for x
    x = 1,676,203,928.78/58,539.78
  6. Step 6: Final answer
    x = 28,633.59

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1.5x scale

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.