Home / 56,135.10-77,466.39-30,984.54

Finding the Fourth Proportional to 56,135.10, 77,466.39 and 30,984.54

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Solution

The fourth proportional to 56,135.10, 77,466.39 and 30,984.54 is: 42,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,135.10 : 77,466.39 = 30,984.54 : x
  2. Step 2: Convert to fraction form
    56,135.10/77,466.39 = 30,984.54/x
  3. Step 3: Cross multiply
    56,135.10x = 77,466.39 × 30,984.54
  4. Step 4: Simplify right side
    56,135.10x = 2,400,260,459.61
  5. Step 5: Solve for x
    x = 2,400,260,459.61/56,135.10
  6. Step 6: Final answer
    x = 42,758.64

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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.