Home / 76,211.70-105,170.73-42,220.08

Finding the Fourth Proportional to 76,211.70, 105,170.73 and 42,220.08

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Solution

The fourth proportional to 76,211.70, 105,170.73 and 42,220.08 is: 58,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,211.70 : 105,170.73 = 42,220.08 : x
  2. Step 2: Convert to fraction form
    76,211.70/105,170.73 = 42,220.08/x
  3. Step 3: Cross multiply
    76,211.70x = 105,170.73 × 42,220.08
  4. Step 4: Simplify right side
    76,211.70x = 4,440,316,634.26
  5. Step 5: Solve for x
    x = 4,440,316,634.26/76,211.70
  6. Step 6: Final answer
    x = 58,262.93

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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.