Home / 74,430.18-102,707.69-42,591.78

Finding the Fourth Proportional to 74,430.18, 102,707.69 and 42,591.78

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Solution

The fourth proportional to 74,430.18, 102,707.69 and 42,591.78 is: 58,773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.18 : 102,707.69 = 42,591.78 : x
  2. Step 2: Convert to fraction form
    74,430.18/102,707.69 = 42,591.78/x
  3. Step 3: Cross multiply
    74,430.18x = 102,707.69 × 42,591.78
  4. Step 4: Simplify right side
    74,430.18x = 4,374,503,336.79
  5. Step 5: Solve for x
    x = 4,374,503,336.79/74,430.18
  6. Step 6: Final answer
    x = 58,773.25

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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.