Home / 74,465.34-102,763.92-40,475.72

Finding the Fourth Proportional to 74,465.34, 102,763.92 and 40,475.72

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Solution

The fourth proportional to 74,465.34, 102,763.92 and 40,475.72 is: 55,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.34 : 102,763.92 = 40,475.72 : x
  2. Step 2: Convert to fraction form
    74,465.34/102,763.92 = 40,475.72/x
  3. Step 3: Cross multiply
    74,465.34x = 102,763.92 × 40,475.72
  4. Step 4: Simplify right side
    74,465.34x = 4,159,443,652.02
  5. Step 5: Solve for x
    x = 4,159,443,652.02/74,465.34
  6. Step 6: Final answer
    x = 55,857.45

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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.