Home / 53,128.91-79,674.76-15,679.07

Finding the Fourth Proportional to 53,128.91, 79,674.76 and 15,679.07

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Solution

The fourth proportional to 53,128.91, 79,674.76 and 15,679.07 is: 23,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,128.91 : 79,674.76 = 15,679.07 : x
  2. Step 2: Convert to fraction form
    53,128.91/79,674.76 = 15,679.07/x
  3. Step 3: Cross multiply
    53,128.91x = 79,674.76 × 15,679.07
  4. Step 4: Simplify right side
    53,128.91x = 1,249,225,740.90
  5. Step 5: Solve for x
    x = 1,249,225,740.90/53,128.91
  6. Step 6: Final answer
    x = 23,513.11

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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.