Home / 48,059.76-72,089.66-12,520.98

Finding the Fourth Proportional to 48,059.76, 72,089.66 and 12,520.98

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Solution

The fourth proportional to 48,059.76, 72,089.66 and 12,520.98 is: 18,781.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,059.76 : 72,089.66 = 12,520.98 : x
  2. Step 2: Convert to fraction form
    48,059.76/72,089.66 = 12,520.98/x
  3. Step 3: Cross multiply
    48,059.76x = 72,089.66 × 12,520.98
  4. Step 4: Simplify right side
    48,059.76x = 902,633,128.46
  5. Step 5: Solve for x
    x = 902,633,128.46/48,059.76
  6. Step 6: Final answer
    x = 18,781.47

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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.