Home / 56,750.69-78,315.21-31,256.57

Finding the Fourth Proportional to 56,750.69, 78,315.21 and 31,256.57

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Solution

The fourth proportional to 56,750.69, 78,315.21 and 31,256.57 is: 43,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,750.69 : 78,315.21 = 31,256.57 : x
  2. Step 2: Convert to fraction form
    56,750.69/78,315.21 = 31,256.57/x
  3. Step 3: Cross multiply
    56,750.69x = 78,315.21 × 31,256.57
  4. Step 4: Simplify right side
    56,750.69x = 2,447,864,451.85
  5. Step 5: Solve for x
    x = 2,447,864,451.85/56,750.69
  6. Step 6: Final answer
    x = 43,133.65

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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.