Home / 78,683.48-118,046.28-34,313.84

Finding the Fourth Proportional to 78,683.48, 118,046.28 and 34,313.84

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Solution

The fourth proportional to 78,683.48, 118,046.28 and 34,313.84 is: 51,479.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,683.48 : 118,046.28 = 34,313.84 : x
  2. Step 2: Convert to fraction form
    78,683.48/118,046.28 = 34,313.84/x
  3. Step 3: Cross multiply
    78,683.48x = 118,046.28 × 34,313.84
  4. Step 4: Simplify right side
    78,683.48x = 4,050,621,164.52
  5. Step 5: Solve for x
    x = 4,050,621,164.52/78,683.48
  6. Step 6: Final answer
    x = 51,479.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.