Home / 53,332.65-79,998.12-13,888.89

Finding the Fourth Proportional to 53,332.65, 79,998.12 and 13,888.89

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Solution

The fourth proportional to 53,332.65, 79,998.12 and 13,888.89 is: 20,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,332.65 : 79,998.12 = 13,888.89 : x
  2. Step 2: Convert to fraction form
    53,332.65/79,998.12 = 13,888.89/x
  3. Step 3: Cross multiply
    53,332.65x = 79,998.12 × 13,888.89
  4. Step 4: Simplify right side
    53,332.65x = 1,111,085,088.89
  5. Step 5: Solve for x
    x = 1,111,085,088.89/53,332.65
  6. Step 6: Final answer
    x = 20,833.11

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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.