Home / 78,830.59-118,242.57-36,696.19

Finding the Fourth Proportional to 78,830.59, 118,242.57 and 36,696.19

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Solution

The fourth proportional to 78,830.59, 118,242.57 and 36,696.19 is: 55,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,830.59 : 118,242.57 = 36,696.19 : x
  2. Step 2: Convert to fraction form
    78,830.59/118,242.57 = 36,696.19/x
  3. Step 3: Cross multiply
    78,830.59x = 118,242.57 × 36,696.19
  4. Step 4: Simplify right side
    78,830.59x = 4,339,051,223.60
  5. Step 5: Solve for x
    x = 4,339,051,223.60/78,830.59
  6. Step 6: Final answer
    x = 55,042.74

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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.