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Finding the Fourth Proportional to 78,804.59, 118,140.35 and 36,662.91

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Solution

The fourth proportional to 78,804.59, 118,140.35 and 36,662.91 is: 54,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804.59 : 118,140.35 = 36,662.91 : x
  2. Step 2: Convert to fraction form
    78,804.59/118,140.35 = 36,662.91/x
  3. Step 3: Cross multiply
    78,804.59x = 118,140.35 × 36,662.91
  4. Step 4: Simplify right side
    78,804.59x = 4,331,368,836.10
  5. Step 5: Solve for x
    x = 4,331,368,836.10/78,804.59
  6. Step 6: Final answer
    x = 54,963.41

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1.5x scale

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.