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Finding the Fourth Proportional to 58,071.88, 87,116.48 and 20,628.82

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Solution

The fourth proportional to 58,071.88, 87,116.48 and 20,628.82 is: 30,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,071.88 : 87,116.48 = 20,628.82 : x
  2. Step 2: Convert to fraction form
    58,071.88/87,116.48 = 20,628.82/x
  3. Step 3: Cross multiply
    58,071.88x = 87,116.48 × 20,628.82
  4. Step 4: Simplify right side
    58,071.88x = 1,797,110,184.95
  5. Step 5: Solve for x
    x = 1,797,110,184.95/58,071.88
  6. Step 6: Final answer
    x = 30,946.31

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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.