Home / 115,259.11-172,888.66-31,019.46

Finding the Fourth Proportional to 115,259.11, 172,888.66 and 31,019.46

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Solution

The fourth proportional to 115,259.11, 172,888.66 and 31,019.46 is: 46,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,259.11 : 172,888.66 = 31,019.46 : x
  2. Step 2: Convert to fraction form
    115,259.11/172,888.66 = 31,019.46/x
  3. Step 3: Cross multiply
    115,259.11x = 172,888.66 × 31,019.46
  4. Step 4: Simplify right side
    115,259.11x = 5,362,912,873.32
  5. Step 5: Solve for x
    x = 5,362,912,873.32/115,259.11
  6. Step 6: Final answer
    x = 46,529.19

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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.