Home / 75,276.36-112,914.62-19,120.68

Finding the Fourth Proportional to 75,276.36, 112,914.62 and 19,120.68

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Solution

The fourth proportional to 75,276.36, 112,914.62 and 19,120.68 is: 28,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,276.36 : 112,914.62 = 19,120.68 : x
  2. Step 2: Convert to fraction form
    75,276.36/112,914.62 = 19,120.68/x
  3. Step 3: Cross multiply
    75,276.36x = 112,914.62 × 19,120.68
  4. Step 4: Simplify right side
    75,276.36x = 2,159,004,316.34
  5. Step 5: Solve for x
    x = 2,159,004,316.34/75,276.36
  6. Step 6: Final answer
    x = 28,681.04

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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.