Home / 57,005.96-78,668.10-31,855.46

Finding the Fourth Proportional to 57,005.96, 78,668.10 and 31,855.46

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Solution

The fourth proportional to 57,005.96, 78,668.10 and 31,855.46 is: 43,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.96 : 78,668.10 = 31,855.46 : x
  2. Step 2: Convert to fraction form
    57,005.96/78,668.10 = 31,855.46/x
  3. Step 3: Cross multiply
    57,005.96x = 78,668.10 × 31,855.46
  4. Step 4: Simplify right side
    57,005.96x = 2,506,008,512.83
  5. Step 5: Solve for x
    x = 2,506,008,512.83/57,005.96
  6. Step 6: Final answer
    x = 43,960.47

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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.