Home / 78,600.81-108,437.07-48,377.01

Finding the Fourth Proportional to 78,600.81, 108,437.07 and 48,377.01

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Solution

The fourth proportional to 78,600.81, 108,437.07 and 48,377.01 is: 66,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,600.81 : 108,437.07 = 48,377.01 : x
  2. Step 2: Convert to fraction form
    78,600.81/108,437.07 = 48,377.01/x
  3. Step 3: Cross multiply
    78,600.81x = 108,437.07 × 48,377.01
  4. Step 4: Simplify right side
    78,600.81x = 5,245,861,219.76
  5. Step 5: Solve for x
    x = 5,245,861,219.76/78,600.81
  6. Step 6: Final answer
    x = 66,740.55

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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.