Home / 55,715.52-83,585.58-20,655.18

Finding the Fourth Proportional to 55,715.52, 83,585.58 and 20,655.18

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Solution

The fourth proportional to 55,715.52, 83,585.58 and 20,655.18 is: 30,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,715.52 : 83,585.58 = 20,655.18 : x
  2. Step 2: Convert to fraction form
    55,715.52/83,585.58 = 20,655.18/x
  3. Step 3: Cross multiply
    55,715.52x = 83,585.58 × 20,655.18
  4. Step 4: Simplify right side
    55,715.52x = 1,726,475,122.85
  5. Step 5: Solve for x
    x = 1,726,475,122.85/55,715.52
  6. Step 6: Final answer
    x = 30,987.33

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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.