Home / 53,313.05-79,969.68-13,870.10

Finding the Fourth Proportional to 53,313.05, 79,969.68 and 13,870.10

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Solution

The fourth proportional to 53,313.05, 79,969.68 and 13,870.10 is: 20,805.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,313.05 : 79,969.68 = 13,870.10 : x
  2. Step 2: Convert to fraction form
    53,313.05/79,969.68 = 13,870.10/x
  3. Step 3: Cross multiply
    53,313.05x = 79,969.68 × 13,870.10
  4. Step 4: Simplify right side
    53,313.05x = 1,109,187,658.49
  5. Step 5: Solve for x
    x = 1,109,187,658.49/53,313.05
  6. Step 6: Final answer
    x = 20,805.18

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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.