Home / 55,423.81-83,147.39-17,980.96

Finding the Fourth Proportional to 55,423.81, 83,147.39 and 17,980.96

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Solution

The fourth proportional to 55,423.81, 83,147.39 and 17,980.96 is: 26,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423.81 : 83,147.39 = 17,980.96 : x
  2. Step 2: Convert to fraction form
    55,423.81/83,147.39 = 17,980.96/x
  3. Step 3: Cross multiply
    55,423.81x = 83,147.39 × 17,980.96
  4. Step 4: Simplify right side
    55,423.81x = 1,495,069,893.69
  5. Step 5: Solve for x
    x = 1,495,069,893.69/55,423.81
  6. Step 6: Final answer
    x = 26,975.23

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Double scale
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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.