Home / 51,960.47-77,909.45-20,332.80

Finding the Fourth Proportional to 51,960.47, 77,909.45 and 20,332.80

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Solution

The fourth proportional to 51,960.47, 77,909.45 and 20,332.80 is: 30,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,960.47 : 77,909.45 = 20,332.80 : x
  2. Step 2: Convert to fraction form
    51,960.47/77,909.45 = 20,332.80/x
  3. Step 3: Cross multiply
    51,960.47x = 77,909.45 × 20,332.80
  4. Step 4: Simplify right side
    51,960.47x = 1,584,117,315.79
  5. Step 5: Solve for x
    x = 1,584,117,315.79/51,960.47
  6. Step 6: Final answer
    x = 30,486.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.