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Finding the Fourth Proportional to 70,077.85, 105,258.27 and 42,051.14

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Solution

The fourth proportional to 70,077.85, 105,258.27 and 42,051.14 is: 63,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,077.85 : 105,258.27 = 42,051.14 : x
  2. Step 2: Convert to fraction form
    70,077.85/105,258.27 = 42,051.14/x
  3. Step 3: Cross multiply
    70,077.85x = 105,258.27 × 42,051.14
  4. Step 4: Simplify right side
    70,077.85x = 4,426,230,247.93
  5. Step 5: Solve for x
    x = 4,426,230,247.93/70,077.85
  6. Step 6: Final answer
    x = 63,161.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.