Home / 74,275.88-102,500.76-40,284.35

Finding the Fourth Proportional to 74,275.88, 102,500.76 and 40,284.35

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Solution

The fourth proportional to 74,275.88, 102,500.76 and 40,284.35 is: 55,592.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,275.88 : 102,500.76 = 40,284.35 : x
  2. Step 2: Convert to fraction form
    74,275.88/102,500.76 = 40,284.35/x
  3. Step 3: Cross multiply
    74,275.88x = 102,500.76 × 40,284.35
  4. Step 4: Simplify right side
    74,275.88x = 4,129,175,978.60
  5. Step 5: Solve for x
    x = 4,129,175,978.60/74,275.88
  6. Step 6: Final answer
    x = 55,592.42

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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.