Home / 74,412.63-102,678.66-42,575.58

Finding the Fourth Proportional to 74,412.63, 102,678.66 and 42,575.58

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Solution

The fourth proportional to 74,412.63, 102,678.66 and 42,575.58 is: 58,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,412.63 : 102,678.66 = 42,575.58 : x
  2. Step 2: Convert to fraction form
    74,412.63/102,678.66 = 42,575.58/x
  3. Step 3: Cross multiply
    74,412.63x = 102,678.66 × 42,575.58
  4. Step 4: Simplify right side
    74,412.63x = 4,371,603,503.12
  5. Step 5: Solve for x
    x = 4,371,603,503.12/74,412.63
  6. Step 6: Final answer
    x = 58,748.14

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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.