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Finding the Fourth Proportional to 79,230.88, 109,341.15 and 43,423.08

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Solution

The fourth proportional to 79,230.88, 109,341.15 and 43,423.08 is: 59,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,230.88 : 109,341.15 = 43,423.08 : x
  2. Step 2: Convert to fraction form
    79,230.88/109,341.15 = 43,423.08/x
  3. Step 3: Cross multiply
    79,230.88x = 109,341.15 × 43,423.08
  4. Step 4: Simplify right side
    79,230.88x = 4,747,929,503.74
  5. Step 5: Solve for x
    x = 4,747,929,503.74/79,230.88
  6. Step 6: Final answer
    x = 59,925.24

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1.5x scale

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.