Home / 55,975.10-83,962.65-20,912.90

Finding the Fourth Proportional to 55,975.10, 83,962.65 and 20,912.90

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Solution

The fourth proportional to 55,975.10, 83,962.65 and 20,912.90 is: 31,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,975.10 : 83,962.65 = 20,912.90 : x
  2. Step 2: Convert to fraction form
    55,975.10/83,962.65 = 20,912.90/x
  3. Step 3: Cross multiply
    55,975.10x = 83,962.65 × 20,912.90
  4. Step 4: Simplify right side
    55,975.10x = 1,755,902,503.19
  5. Step 5: Solve for x
    x = 1,755,902,503.19/55,975.10
  6. Step 6: Final answer
    x = 31,369.35

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Similar ratio
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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.