Home / 78,798.12-108,737.81-48,586.26

Finding the Fourth Proportional to 78,798.12, 108,737.81 and 48,586.26

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Solution

The fourth proportional to 78,798.12, 108,737.81 and 48,586.26 is: 67,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,798.12 : 108,737.81 = 48,586.26 : x
  2. Step 2: Convert to fraction form
    78,798.12/108,737.81 = 48,586.26/x
  3. Step 3: Cross multiply
    78,798.12x = 108,737.81 × 48,586.26
  4. Step 4: Simplify right side
    78,798.12x = 5,283,163,040.54
  5. Step 5: Solve for x
    x = 5,283,163,040.54/78,798.12
  6. Step 6: Final answer
    x = 67,046.81

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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.