Home / 213,613.55-320,438.55-55,841.75

Finding the Fourth Proportional to 213,613.55, 320,438.55 and 55,841.75

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Solution

The fourth proportional to 213,613.55, 320,438.55 and 55,841.75 is: 83,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,613.55 : 320,438.55 = 55,841.75 : x
  2. Step 2: Convert to fraction form
    213,613.55/320,438.55 = 55,841.75/x
  3. Step 3: Cross multiply
    213,613.55x = 320,438.55 × 55,841.75
  4. Step 4: Simplify right side
    213,613.55x = 17,893,849,399.46
  5. Step 5: Solve for x
    x = 17,893,849,399.46/213,613.55
  6. Step 6: Final answer
    x = 83,767.39

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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.