Home / 57,015.68-78,703.56-51,036.80

Finding the Fourth Proportional to 57,015.68, 78,703.56 and 51,036.80

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Solution

The fourth proportional to 57,015.68, 78,703.56 and 51,036.80 is: 70,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,015.68 : 78,703.56 = 51,036.80 : x
  2. Step 2: Convert to fraction form
    57,015.68/78,703.56 = 51,036.80/x
  3. Step 3: Cross multiply
    57,015.68x = 78,703.56 × 51,036.80
  4. Step 4: Simplify right side
    57,015.68x = 4,016,777,851.01
  5. Step 5: Solve for x
    x = 4,016,777,851.01/57,015.68
  6. Step 6: Final answer
    x = 70,450.41

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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.