Home / 52,875.20-79,312.80-17,811.20

Finding the Fourth Proportional to 52,875.20, 79,312.80 and 17,811.20

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Solution

The fourth proportional to 52,875.20, 79,312.80 and 17,811.20 is: 26,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,875.20 : 79,312.80 = 17,811.20 : x
  2. Step 2: Convert to fraction form
    52,875.20/79,312.80 = 17,811.20/x
  3. Step 3: Cross multiply
    52,875.20x = 79,312.80 × 17,811.20
  4. Step 4: Simplify right side
    52,875.20x = 1,412,656,143.36
  5. Step 5: Solve for x
    x = 1,412,656,143.36/52,875.20
  6. Step 6: Final answer
    x = 26,716.80

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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.