Home / 75,323.16-112,985.40-19,163.34

Finding the Fourth Proportional to 75,323.16, 112,985.40 and 19,163.34

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Solution

The fourth proportional to 75,323.16, 112,985.40 and 19,163.34 is: 28,745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,323.16 : 112,985.40 = 19,163.34 : x
  2. Step 2: Convert to fraction form
    75,323.16/112,985.40 = 19,163.34/x
  3. Step 3: Cross multiply
    75,323.16x = 112,985.40 × 19,163.34
  4. Step 4: Simplify right side
    75,323.16x = 2,165,177,635.24
  5. Step 5: Solve for x
    x = 2,165,177,635.24/75,323.16
  6. Step 6: Final answer
    x = 28,745.18

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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.