Home / 76,185.40-105,134.70-42,652.60

Finding the Fourth Proportional to 76,185.40, 105,134.70 and 42,652.60

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Solution

The fourth proportional to 76,185.40, 105,134.70 and 42,652.60 is: 58,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,185.40 : 105,134.70 = 42,652.60 : x
  2. Step 2: Convert to fraction form
    76,185.40/105,134.70 = 42,652.60/x
  3. Step 3: Cross multiply
    76,185.40x = 105,134.70 × 42,652.60
  4. Step 4: Simplify right side
    76,185.40x = 4,484,268,305.22
  5. Step 5: Solve for x
    x = 4,484,268,305.22/76,185.40
  6. Step 6: Final answer
    x = 58,859.94

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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.