Home / 76,223.70-105,187.35-42,231.51

Finding the Fourth Proportional to 76,223.70, 105,187.35 and 42,231.51

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Solution

The fourth proportional to 76,223.70, 105,187.35 and 42,231.51 is: 58,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,223.70 : 105,187.35 = 42,231.51 : x
  2. Step 2: Convert to fraction form
    76,223.70/105,187.35 = 42,231.51/x
  3. Step 3: Cross multiply
    76,223.70x = 105,187.35 × 42,231.51
  4. Step 4: Simplify right side
    76,223.70x = 4,442,220,623.40
  5. Step 5: Solve for x
    x = 4,442,220,623.40/76,223.70
  6. Step 6: Final answer
    x = 58,278.73

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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.