Home / 78,736.86-118,140.12-41,288.13

Finding the Fourth Proportional to 78,736.86, 118,140.12 and 41,288.13

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Solution

The fourth proportional to 78,736.86, 118,140.12 and 41,288.13 is: 61,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736.86 : 118,140.12 = 41,288.13 : x
  2. Step 2: Convert to fraction form
    78,736.86/118,140.12 = 41,288.13/x
  3. Step 3: Cross multiply
    78,736.86x = 118,140.12 × 41,288.13
  4. Step 4: Simplify right side
    78,736.86x = 4,877,784,632.78
  5. Step 5: Solve for x
    x = 4,877,784,632.78/78,736.86
  6. Step 6: Final answer
    x = 61,950.46

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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.