Home / 51,365.28-70,881.54-28,699.80

Finding the Fourth Proportional to 51,365.28, 70,881.54 and 28,699.80

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Solution

The fourth proportional to 51,365.28, 70,881.54 and 28,699.80 is: 39,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,365.28 : 70,881.54 = 28,699.80 : x
  2. Step 2: Convert to fraction form
    51,365.28/70,881.54 = 28,699.80/x
  3. Step 3: Cross multiply
    51,365.28x = 70,881.54 × 28,699.80
  4. Step 4: Simplify right side
    51,365.28x = 2,034,286,021.69
  5. Step 5: Solve for x
    x = 2,034,286,021.69/51,365.28
  6. Step 6: Final answer
    x = 39,604.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.