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Finding the Fourth Proportional to 93,087.90, 128,457.50 and 50,646.48

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Solution

The fourth proportional to 93,087.90, 128,457.50 and 50,646.48 is: 69,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,087.90 : 128,457.50 = 50,646.48 : x
  2. Step 2: Convert to fraction form
    93,087.90/128,457.50 = 50,646.48/x
  3. Step 3: Cross multiply
    93,087.90x = 128,457.50 × 50,646.48
  4. Step 4: Simplify right side
    93,087.90x = 6,505,920,204.60
  5. Step 5: Solve for x
    x = 6,505,920,204.60/93,087.90
  6. Step 6: Final answer
    x = 69,890.07

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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.