Home / 75,254.68-112,900.79-53,111.31

Finding the Fourth Proportional to 75,254.68, 112,900.79 and 53,111.31

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Solution

The fourth proportional to 75,254.68, 112,900.79 and 53,111.31 is: 79,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,254.68 : 112,900.79 = 53,111.31 : x
  2. Step 2: Convert to fraction form
    75,254.68/112,900.79 = 53,111.31/x
  3. Step 3: Cross multiply
    75,254.68x = 112,900.79 × 53,111.31
  4. Step 4: Simplify right side
    75,254.68x = 5,996,308,856.93
  5. Step 5: Solve for x
    x = 5,996,308,856.93/75,254.68
  6. Step 6: Final answer
    x = 79,680.21

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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.