Home / 55,118.68-75,928.80-39,966.84

Finding the Fourth Proportional to 55,118.68, 75,928.80 and 39,966.84

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Solution

The fourth proportional to 55,118.68, 75,928.80 and 39,966.84 is: 55,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,118.68 : 75,928.80 = 39,966.84 : x
  2. Step 2: Convert to fraction form
    55,118.68/75,928.80 = 39,966.84/x
  3. Step 3: Cross multiply
    55,118.68x = 75,928.80 × 39,966.84
  4. Step 4: Simplify right side
    55,118.68x = 3,034,634,200.99
  5. Step 5: Solve for x
    x = 3,034,634,200.99/55,118.68
  6. Step 6: Final answer
    x = 55,056.37

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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.