Home / 78,837.60-118,256.40-41,383.20

Finding the Fourth Proportional to 78,837.60, 118,256.40 and 41,383.20

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Solution

The fourth proportional to 78,837.60, 118,256.40 and 41,383.20 is: 62,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,837.60 : 118,256.40 = 41,383.20 : x
  2. Step 2: Convert to fraction form
    78,837.60/118,256.40 = 41,383.20/x
  3. Step 3: Cross multiply
    78,837.60x = 118,256.40 × 41,383.20
  4. Step 4: Simplify right side
    78,837.60x = 4,893,828,252.48
  5. Step 5: Solve for x
    x = 4,893,828,252.48/78,837.60
  6. Step 6: Final answer
    x = 62,074.80

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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.