Home / 78,925.86-118,255.14-47,695.50

Finding the Fourth Proportional to 78,925.86, 118,255.14 and 47,695.50

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Solution

The fourth proportional to 78,925.86, 118,255.14 and 47,695.50 is: 71,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,925.86 : 118,255.14 = 47,695.50 : x
  2. Step 2: Convert to fraction form
    78,925.86/118,255.14 = 47,695.50/x
  3. Step 3: Cross multiply
    78,925.86x = 118,255.14 × 47,695.50
  4. Step 4: Simplify right side
    78,925.86x = 5,640,238,029.87
  5. Step 5: Solve for x
    x = 5,640,238,029.87/78,925.86
  6. Step 6: Final answer
    x = 71,462.48

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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.