Home / 57,005.07-78,666.44-31,854.57

Finding the Fourth Proportional to 57,005.07, 78,666.44 and 31,854.57

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Solution

The fourth proportional to 57,005.07, 78,666.44 and 31,854.57 is: 43,958.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.07 : 78,666.44 = 31,854.57 : x
  2. Step 2: Convert to fraction form
    57,005.07/78,666.44 = 31,854.57/x
  3. Step 3: Cross multiply
    57,005.07x = 78,666.44 × 31,854.57
  4. Step 4: Simplify right side
    57,005.07x = 2,505,885,460.36
  5. Step 5: Solve for x
    x = 2,505,885,460.36/57,005.07
  6. Step 6: Final answer
    x = 43,958.99

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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.