Home / 86,921.28-130,216.41-49,507.18

Finding the Fourth Proportional to 86,921.28, 130,216.41 and 49,507.18

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Solution

The fourth proportional to 86,921.28, 130,216.41 and 49,507.18 is: 74,166.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.28 : 130,216.41 = 49,507.18 : x
  2. Step 2: Convert to fraction form
    86,921.28/130,216.41 = 49,507.18/x
  3. Step 3: Cross multiply
    86,921.28x = 130,216.41 × 49,507.18
  4. Step 4: Simplify right side
    86,921.28x = 6,446,646,923.28
  5. Step 5: Solve for x
    x = 6,446,646,923.28/86,921.28
  6. Step 6: Final answer
    x = 74,166.50

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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.