Home / 51,945.60-77,918.40-31,209.60

Finding the Fourth Proportional to 51,945.60, 77,918.40 and 31,209.60

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Solution

The fourth proportional to 51,945.60, 77,918.40 and 31,209.60 is: 46,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,945.60 : 77,918.40 = 31,209.60 : x
  2. Step 2: Convert to fraction form
    51,945.60/77,918.40 = 31,209.60/x
  3. Step 3: Cross multiply
    51,945.60x = 77,918.40 × 31,209.60
  4. Step 4: Simplify right side
    51,945.60x = 2,431,802,096.64
  5. Step 5: Solve for x
    x = 2,431,802,096.64/51,945.60
  6. Step 6: Final answer
    x = 46,814.40

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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.