Home / 53,312.99-79,969.58-13,870.04

Finding the Fourth Proportional to 53,312.99, 79,969.58 and 13,870.04

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Solution

The fourth proportional to 53,312.99, 79,969.58 and 13,870.04 is: 20,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,312.99 : 79,969.58 = 13,870.04 : x
  2. Step 2: Convert to fraction form
    53,312.99/79,969.58 = 13,870.04/x
  3. Step 3: Cross multiply
    53,312.99x = 79,969.58 × 13,870.04
  4. Step 4: Simplify right side
    53,312.99x = 1,109,181,273.38
  5. Step 5: Solve for x
    x = 1,109,181,273.38/53,312.99
  6. Step 6: Final answer
    x = 20,805.08

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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.