Home / 74,432.50-102,716.85-40,898.74

Finding the Fourth Proportional to 74,432.50, 102,716.85 and 40,898.74

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Solution

The fourth proportional to 74,432.50, 102,716.85 and 40,898.74 is: 56,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,432.50 : 102,716.85 = 40,898.74 : x
  2. Step 2: Convert to fraction form
    74,432.50/102,716.85 = 40,898.74/x
  3. Step 3: Cross multiply
    74,432.50x = 102,716.85 × 40,898.74
  4. Step 4: Simplify right side
    74,432.50x = 4,200,989,741.77
  5. Step 5: Solve for x
    x = 4,200,989,741.77/74,432.50
  6. Step 6: Final answer
    x = 56,440.26

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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.