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Finding the Fourth Proportional to 53,065.70, 79,581.65 and 17,520.39

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Solution

The fourth proportional to 53,065.70, 79,581.65 and 17,520.39 is: 26,275.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,065.70 : 79,581.65 = 17,520.39 : x
  2. Step 2: Convert to fraction form
    53,065.70/79,581.65 = 17,520.39/x
  3. Step 3: Cross multiply
    53,065.70x = 79,581.65 × 17,520.39
  4. Step 4: Simplify right side
    53,065.70x = 1,394,301,457.24
  5. Step 5: Solve for x
    x = 1,394,301,457.24/53,065.70
  6. Step 6: Final answer
    x = 26,275.01

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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.