Home / 78,971.20-118,386.41-29,039.26

Finding the Fourth Proportional to 78,971.20, 118,386.41 and 29,039.26

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Solution

The fourth proportional to 78,971.20, 118,386.41 and 29,039.26 is: 43,533.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,971.20 : 118,386.41 = 29,039.26 : x
  2. Step 2: Convert to fraction form
    78,971.20/118,386.41 = 29,039.26/x
  3. Step 3: Cross multiply
    78,971.20x = 118,386.41 × 29,039.26
  4. Step 4: Simplify right side
    78,971.20x = 3,437,853,684.61
  5. Step 5: Solve for x
    x = 3,437,853,684.61/78,971.20
  6. Step 6: Final answer
    x = 43,533.00

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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.