Home / 53,307.84-79,964.64-13,865.04

Finding the Fourth Proportional to 53,307.84, 79,964.64 and 13,865.04

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Solution

The fourth proportional to 53,307.84, 79,964.64 and 13,865.04 is: 20,798.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,307.84 : 79,964.64 = 13,865.04 : x
  2. Step 2: Convert to fraction form
    53,307.84/79,964.64 = 13,865.04/x
  3. Step 3: Cross multiply
    53,307.84x = 79,964.64 × 13,865.04
  4. Step 4: Simplify right side
    53,307.84x = 1,108,712,932.19
  5. Step 5: Solve for x
    x = 1,108,712,932.19/53,307.84
  6. Step 6: Final answer
    x = 20,798.31

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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.