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Finding the Fourth Proportional to 93,153.66, 128,552 and 50,712.18

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Solution

The fourth proportional to 93,153.66, 128,552 and 50,712.18 is: 69,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,153.66 : 128,552 = 50,712.18 : x
  2. Step 2: Convert to fraction form
    93,153.66/128,552 = 50,712.18/x
  3. Step 3: Cross multiply
    93,153.66x = 128,552 × 50,712.18
  4. Step 4: Simplify right side
    93,153.66x = 6,519,152,163.36
  5. Step 5: Solve for x
    x = 6,519,152,163.36/93,153.66
  6. Step 6: Final answer
    x = 69,982.78

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1.5x scale

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.