Home / 78,888.06-108,874.08-48,672.59

Finding the Fourth Proportional to 78,888.06, 108,874.08 and 48,672.59

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Solution

The fourth proportional to 78,888.06, 108,874.08 and 48,672.59 is: 67,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888.06 : 108,874.08 = 48,672.59 : x
  2. Step 2: Convert to fraction form
    78,888.06/108,874.08 = 48,672.59/x
  3. Step 3: Cross multiply
    78,888.06x = 108,874.08 × 48,672.59
  4. Step 4: Simplify right side
    78,888.06x = 5,299,182,913.10
  5. Step 5: Solve for x
    x = 5,299,182,913.10/78,888.06
  6. Step 6: Final answer
    x = 67,173.45

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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.