Home / 90,650.49-125,088.05-52,403.98

Finding the Fourth Proportional to 90,650.49, 125,088.05 and 52,403.98

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Solution

The fourth proportional to 90,650.49, 125,088.05 and 52,403.98 is: 72,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,650.49 : 125,088.05 = 52,403.98 : x
  2. Step 2: Convert to fraction form
    90,650.49/125,088.05 = 52,403.98/x
  3. Step 3: Cross multiply
    90,650.49x = 125,088.05 × 52,403.98
  4. Step 4: Simplify right side
    90,650.49x = 6,555,111,670.44
  5. Step 5: Solve for x
    x = 6,555,111,670.44/90,650.49
  6. Step 6: Final answer
    x = 72,311.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.