Home / 78,837.60-118,253.07-36,703.20

Finding the Fourth Proportional to 78,837.60, 118,253.07 and 36,703.20

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Solution

The fourth proportional to 78,837.60, 118,253.07 and 36,703.20 is: 55,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,837.60 : 118,253.07 = 36,703.20 : x
  2. Step 2: Convert to fraction form
    78,837.60/118,253.07 = 36,703.20/x
  3. Step 3: Cross multiply
    78,837.60x = 118,253.07 × 36,703.20
  4. Step 4: Simplify right side
    78,837.60x = 4,340,266,078.82
  5. Step 5: Solve for x
    x = 4,340,266,078.82/78,837.60
  6. Step 6: Final answer
    x = 55,053.25

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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.