Home / 86,300.13-129,406.90-50,288.25

Finding the Fourth Proportional to 86,300.13, 129,406.90 and 50,288.25

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Solution

The fourth proportional to 86,300.13, 129,406.90 and 50,288.25 is: 75,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,300.13 : 129,406.90 = 50,288.25 : x
  2. Step 2: Convert to fraction form
    86,300.13/129,406.90 = 50,288.25/x
  3. Step 3: Cross multiply
    86,300.13x = 129,406.90 × 50,288.25
  4. Step 4: Simplify right side
    86,300.13x = 6,507,646,664.65
  5. Step 5: Solve for x
    x = 6,507,646,664.65/86,300.13
  6. Step 6: Final answer
    x = 75,407.15

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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.