Home / 74,559.15-102,889.02-40,566.69

Finding the Fourth Proportional to 74,559.15, 102,889.02 and 40,566.69

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Solution

The fourth proportional to 74,559.15, 102,889.02 and 40,566.69 is: 55,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,559.15 : 102,889.02 = 40,566.69 : x
  2. Step 2: Convert to fraction form
    74,559.15/102,889.02 = 40,566.69/x
  3. Step 3: Cross multiply
    74,559.15x = 102,889.02 × 40,566.69
  4. Step 4: Simplify right side
    74,559.15x = 4,173,866,978.74
  5. Step 5: Solve for x
    x = 4,173,866,978.74/74,559.15
  6. Step 6: Final answer
    x = 55,980.61

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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.