Home / 89,852.68-123,989.70-52,129.36

Finding the Fourth Proportional to 89,852.68, 123,989.70 and 52,129.36

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Solution

The fourth proportional to 89,852.68, 123,989.70 and 52,129.36 is: 71,934.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,852.68 : 123,989.70 = 52,129.36 : x
  2. Step 2: Convert to fraction form
    89,852.68/123,989.70 = 52,129.36/x
  3. Step 3: Cross multiply
    89,852.68x = 123,989.70 × 52,129.36
  4. Step 4: Simplify right side
    89,852.68x = 6,463,503,707.59
  5. Step 5: Solve for x
    x = 6,463,503,707.59/89,852.68
  6. Step 6: Final answer
    x = 71,934.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.