Home / 78,862.48-118,285.68-26,266.28

Finding the Fourth Proportional to 78,862.48, 118,285.68 and 26,266.28

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Solution

The fourth proportional to 78,862.48, 118,285.68 and 26,266.28 is: 39,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,862.48 : 118,285.68 = 26,266.28 : x
  2. Step 2: Convert to fraction form
    78,862.48/118,285.68 = 26,266.28/x
  3. Step 3: Cross multiply
    78,862.48x = 118,285.68 × 26,266.28
  4. Step 4: Simplify right side
    78,862.48x = 3,106,924,790.87
  5. Step 5: Solve for x
    x = 3,106,924,790.87/78,862.48
  6. Step 6: Final answer
    x = 39,396.74

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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.