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Finding the Fourth Proportional to 93,102.88, 128,482.40 and 50,661.12

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Solution

The fourth proportional to 93,102.88, 128,482.40 and 50,661.12 is: 69,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.88 : 128,482.40 = 50,661.12 : x
  2. Step 2: Convert to fraction form
    93,102.88/128,482.40 = 50,661.12/x
  3. Step 3: Cross multiply
    93,102.88x = 128,482.40 × 50,661.12
  4. Step 4: Simplify right side
    93,102.88x = 6,509,062,284.29
  5. Step 5: Solve for x
    x = 6,509,062,284.29/93,102.88
  6. Step 6: Final answer
    x = 69,912.58

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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.