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Finding the Fourth Proportional to 93,448.64, 128,958.72 and 51,007.07

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Solution

The fourth proportional to 93,448.64, 128,958.72 and 51,007.07 is: 70,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,448.64 : 128,958.72 = 51,007.07 : x
  2. Step 2: Convert to fraction form
    93,448.64/128,958.72 = 51,007.07/x
  3. Step 3: Cross multiply
    93,448.64x = 128,958.72 × 51,007.07
  4. Step 4: Simplify right side
    93,448.64x = 6,577,805,813.36
  5. Step 5: Solve for x
    x = 6,577,805,813.36/93,448.64
  6. Step 6: Final answer
    x = 70,389.53

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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.