Home / 74,438.76-102,725-40,446.98

Finding the Fourth Proportional to 74,438.76, 102,725 and 40,446.98

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Solution

The fourth proportional to 74,438.76, 102,725 and 40,446.98 is: 55,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,438.76 : 102,725 = 40,446.98 : x
  2. Step 2: Convert to fraction form
    74,438.76/102,725 = 40,446.98/x
  3. Step 3: Cross multiply
    74,438.76x = 102,725 × 40,446.98
  4. Step 4: Simplify right side
    74,438.76x = 4,154,916,020.50
  5. Step 5: Solve for x
    x = 4,154,916,020.50/74,438.76
  6. Step 6: Final answer
    x = 55,816.57

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1.5x scale

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.