Home / 56,841.75-78,440.55-31,350.49

Finding the Fourth Proportional to 56,841.75, 78,440.55 and 31,350.49

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Solution

The fourth proportional to 56,841.75, 78,440.55 and 31,350.49 is: 43,263.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,841.75 : 78,440.55 = 31,350.49 : x
  2. Step 2: Convert to fraction form
    56,841.75/78,440.55 = 31,350.49/x
  3. Step 3: Cross multiply
    56,841.75x = 78,440.55 × 31,350.49
  4. Step 4: Simplify right side
    56,841.75x = 2,459,149,982.28
  5. Step 5: Solve for x
    x = 2,459,149,982.28/56,841.75
  6. Step 6: Final answer
    x = 43,263.09

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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.