Home / 53,118.92-79,666.06-15,681.56

Finding the Fourth Proportional to 53,118.92, 79,666.06 and 15,681.56

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Solution

The fourth proportional to 53,118.92, 79,666.06 and 15,681.56 is: 23,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,118.92 : 79,666.06 = 15,681.56 : x
  2. Step 2: Convert to fraction form
    53,118.92/79,666.06 = 15,681.56/x
  3. Step 3: Cross multiply
    53,118.92x = 79,666.06 × 15,681.56
  4. Step 4: Simplify right side
    53,118.92x = 1,249,288,099.85
  5. Step 5: Solve for x
    x = 1,249,288,099.85/53,118.92
  6. Step 6: Final answer
    x = 23,518.70

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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.