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Finding the Fourth Proportional to 79,117.41, 109,177.80 and 43,300.50

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Solution

The fourth proportional to 79,117.41, 109,177.80 and 43,300.50 is: 59,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.41 : 109,177.80 = 43,300.50 : x
  2. Step 2: Convert to fraction form
    79,117.41/109,177.80 = 43,300.50/x
  3. Step 3: Cross multiply
    79,117.41x = 109,177.80 × 43,300.50
  4. Step 4: Simplify right side
    79,117.41x = 4,727,453,328.90
  5. Step 5: Solve for x
    x = 4,727,453,328.90/79,117.41
  6. Step 6: Final answer
    x = 59,752.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.