Home / 74,355.59-102,610.76-40,364.07

Finding the Fourth Proportional to 74,355.59, 102,610.76 and 40,364.07

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Solution

The fourth proportional to 74,355.59, 102,610.76 and 40,364.07 is: 55,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,355.59 : 102,610.76 = 40,364.07 : x
  2. Step 2: Convert to fraction form
    74,355.59/102,610.76 = 40,364.07/x
  3. Step 3: Cross multiply
    74,355.59x = 102,610.76 × 40,364.07
  4. Step 4: Simplify right side
    74,355.59x = 4,141,787,312.78
  5. Step 5: Solve for x
    x = 4,141,787,312.78/74,355.59
  6. Step 6: Final answer
    x = 55,702.43

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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.