Home / 56,668.81-78,203.12-31,176.83

Finding the Fourth Proportional to 56,668.81, 78,203.12 and 31,176.83

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Solution

The fourth proportional to 56,668.81, 78,203.12 and 31,176.83 is: 43,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.81 : 78,203.12 = 31,176.83 : x
  2. Step 2: Convert to fraction form
    56,668.81/78,203.12 = 31,176.83/x
  3. Step 3: Cross multiply
    56,668.81x = 78,203.12 × 31,176.83
  4. Step 4: Simplify right side
    56,668.81x = 2,438,124,986.69
  5. Step 5: Solve for x
    x = 2,438,124,986.69/56,668.81
  6. Step 6: Final answer
    x = 43,024.11

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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.