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Finding the Fourth Proportional to 53,267.79, 79,880.92 and 19,969.69

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Solution

The fourth proportional to 53,267.79, 79,880.92 and 19,969.69 is: 29,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,267.79 : 79,880.92 = 19,969.69 : x
  2. Step 2: Convert to fraction form
    53,267.79/79,880.92 = 19,969.69/x
  3. Step 3: Cross multiply
    53,267.79x = 79,880.92 × 19,969.69
  4. Step 4: Simplify right side
    53,267.79x = 1,595,197,209.31
  5. Step 5: Solve for x
    x = 1,595,197,209.31/53,267.79
  6. Step 6: Final answer
    x = 29,946.75

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1.5x scale

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.