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Finding the Fourth Proportional to 70,351.76, 105,500.71 and 34,800.87

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Solution

The fourth proportional to 70,351.76, 105,500.71 and 34,800.87 is: 52,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.76 : 105,500.71 = 34,800.87 : x
  2. Step 2: Convert to fraction form
    70,351.76/105,500.71 = 34,800.87/x
  3. Step 3: Cross multiply
    70,351.76x = 105,500.71 × 34,800.87
  4. Step 4: Simplify right side
    70,351.76x = 3,671,516,319.61
  5. Step 5: Solve for x
    x = 3,671,516,319.61/70,351.76
  6. Step 6: Final answer
    x = 52,187.98

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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.