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Finding the Fourth Proportional to 79,137.77, 118,718.35 and 22,970.60

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Solution

The fourth proportional to 79,137.77, 118,718.35 and 22,970.60 is: 34,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,137.77 : 118,718.35 = 22,970.60 : x
  2. Step 2: Convert to fraction form
    79,137.77/118,718.35 = 22,970.60/x
  3. Step 3: Cross multiply
    79,137.77x = 118,718.35 × 22,970.60
  4. Step 4: Simplify right side
    79,137.77x = 2,727,031,730.51
  5. Step 5: Solve for x
    x = 2,727,031,730.51/79,137.77
  6. Step 6: Final answer
    x = 34,459.29

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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.