Home / 72,888.36-109,330.62-20,301.48

Finding the Fourth Proportional to 72,888.36, 109,330.62 and 20,301.48

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Solution

The fourth proportional to 72,888.36, 109,330.62 and 20,301.48 is: 30,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,888.36 : 109,330.62 = 20,301.48 : x
  2. Step 2: Convert to fraction form
    72,888.36/109,330.62 = 20,301.48/x
  3. Step 3: Cross multiply
    72,888.36x = 109,330.62 × 20,301.48
  4. Step 4: Simplify right side
    72,888.36x = 2,219,573,395.32
  5. Step 5: Solve for x
    x = 2,219,573,395.32/72,888.36
  6. Step 6: Final answer
    x = 30,451.69

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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.