Home / 93,150.78-128,565.79-52,868.32

Finding the Fourth Proportional to 93,150.78, 128,565.79 and 52,868.32

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Solution

The fourth proportional to 93,150.78, 128,565.79 and 52,868.32 is: 72,968.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,150.78 : 128,565.79 = 52,868.32 : x
  2. Step 2: Convert to fraction form
    93,150.78/128,565.79 = 52,868.32/x
  3. Step 3: Cross multiply
    93,150.78x = 128,565.79 × 52,868.32
  4. Step 4: Simplify right side
    93,150.78x = 6,797,057,326.77
  5. Step 5: Solve for x
    x = 6,797,057,326.77/93,150.78
  6. Step 6: Final answer
    x = 72,968.34

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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.