Home / 90,885.60-125,420.94-52,650.36

Finding the Fourth Proportional to 90,885.60, 125,420.94 and 52,650.36

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Solution

The fourth proportional to 90,885.60, 125,420.94 and 52,650.36 is: 72,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,885.60 : 125,420.94 = 52,650.36 : x
  2. Step 2: Convert to fraction form
    90,885.60/125,420.94 = 52,650.36/x
  3. Step 3: Cross multiply
    90,885.60x = 125,420.94 × 52,650.36
  4. Step 4: Simplify right side
    90,885.60x = 6,603,457,642.54
  5. Step 5: Solve for x
    x = 6,603,457,642.54/90,885.60
  6. Step 6: Final answer
    x = 72,656.81

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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.