Home / 86,890.75-119,881.35-48,644.66

Finding the Fourth Proportional to 86,890.75, 119,881.35 and 48,644.66

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Solution

The fourth proportional to 86,890.75, 119,881.35 and 48,644.66 is: 67,114.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,890.75 : 119,881.35 = 48,644.66 : x
  2. Step 2: Convert to fraction form
    86,890.75/119,881.35 = 48,644.66/x
  3. Step 3: Cross multiply
    86,890.75x = 119,881.35 × 48,644.66
  4. Step 4: Simplify right side
    86,890.75x = 5,831,587,810.79
  5. Step 5: Solve for x
    x = 5,831,587,810.79/86,890.75
  6. Step 6: Final answer
    x = 67,114.03

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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.