Home / 75,163.07-112,587.74-45,081.92

Finding the Fourth Proportional to 75,163.07, 112,587.74 and 45,081.92

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Solution

The fourth proportional to 75,163.07, 112,587.74 and 45,081.92 is: 67,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,163.07 : 112,587.74 = 45,081.92 : x
  2. Step 2: Convert to fraction form
    75,163.07/112,587.74 = 45,081.92/x
  3. Step 3: Cross multiply
    75,163.07x = 112,587.74 × 45,081.92
  4. Step 4: Simplify right side
    75,163.07x = 5,075,671,079.47
  5. Step 5: Solve for x
    x = 5,075,671,079.47/75,163.07
  6. Step 6: Final answer
    x = 67,528.79

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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.