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Finding the Fourth Proportional to 93,847.15, 129,509.12 and 51,406.39

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Solution

The fourth proportional to 93,847.15, 129,509.12 and 51,406.39 is: 70,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,847.15 : 129,509.12 = 51,406.39 : x
  2. Step 2: Convert to fraction form
    93,847.15/129,509.12 = 51,406.39/x
  3. Step 3: Cross multiply
    93,847.15x = 129,509.12 × 51,406.39
  4. Step 4: Simplify right side
    93,847.15x = 6,657,596,331.28
  5. Step 5: Solve for x
    x = 6,657,596,331.28/93,847.15
  6. Step 6: Final answer
    x = 70,940.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.