Home / 78,927.18-118,386.91-29,003.43

Finding the Fourth Proportional to 78,927.18, 118,386.91 and 29,003.43

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Solution

The fourth proportional to 78,927.18, 118,386.91 and 29,003.43 is: 43,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927.18 : 118,386.91 = 29,003.43 : x
  2. Step 2: Convert to fraction form
    78,927.18/118,386.91 = 29,003.43/x
  3. Step 3: Cross multiply
    78,927.18x = 118,386.91 × 29,003.43
  4. Step 4: Simplify right side
    78,927.18x = 3,433,626,457.10
  5. Step 5: Solve for x
    x = 3,433,626,457.10/78,927.18
  6. Step 6: Final answer
    x = 43,503.73

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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.