Home / 99,921.81-150,073.47-57,886.32

Finding the Fourth Proportional to 99,921.81, 150,073.47 and 57,886.32

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Solution

The fourth proportional to 99,921.81, 150,073.47 and 57,886.32 is: 86,939.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,921.81 : 150,073.47 = 57,886.32 : x
  2. Step 2: Convert to fraction form
    99,921.81/150,073.47 = 57,886.32/x
  3. Step 3: Cross multiply
    99,921.81x = 150,073.47 × 57,886.32
  4. Step 4: Simplify right side
    99,921.81x = 8,687,200,907.93
  5. Step 5: Solve for x
    x = 8,687,200,907.93/99,921.81
  6. Step 6: Final answer
    x = 86,939.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.