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Finding the Fourth Proportional to 78,762, 118,148.91 and 22,601.64

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Solution

The fourth proportional to 78,762, 118,148.91 and 22,601.64 is: 33,904.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,762 : 118,148.91 = 22,601.64 : x
  2. Step 2: Convert to fraction form
    78,762/118,148.91 = 22,601.64/x
  3. Step 3: Cross multiply
    78,762x = 118,148.91 × 22,601.64
  4. Step 4: Simplify right side
    78,762x = 2,670,359,130.21
  5. Step 5: Solve for x
    x = 2,670,359,130.21/78,762
  6. Step 6: Final answer
    x = 33,904.16

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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.