Home / 74,343.45-102,595.49-42,078.06

Finding the Fourth Proportional to 74,343.45, 102,595.49 and 42,078.06

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Solution

The fourth proportional to 74,343.45, 102,595.49 and 42,078.06 is: 58,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343.45 : 102,595.49 = 42,078.06 : x
  2. Step 2: Convert to fraction form
    74,343.45/102,595.49 = 42,078.06/x
  3. Step 3: Cross multiply
    74,343.45x = 102,595.49 × 42,078.06
  4. Step 4: Simplify right side
    74,343.45x = 4,317,018,973.56
  5. Step 5: Solve for x
    x = 4,317,018,973.56/74,343.45
  6. Step 6: Final answer
    x = 58,068.59

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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.