Home / 76,489.49-105,570.60-48,876.50

Finding the Fourth Proportional to 76,489.49, 105,570.60 and 48,876.50

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Solution

The fourth proportional to 76,489.49, 105,570.60 and 48,876.50 is: 67,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,489.49 : 105,570.60 = 48,876.50 : x
  2. Step 2: Convert to fraction form
    76,489.49/105,570.60 = 48,876.50/x
  3. Step 3: Cross multiply
    76,489.49x = 105,570.60 × 48,876.50
  4. Step 4: Simplify right side
    76,489.49x = 5,159,920,903.05
  5. Step 5: Solve for x
    x = 5,159,920,903.05/76,489.49
  6. Step 6: Final answer
    x = 67,459.22

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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.