Home / 52,686.21-79,012.88-17,617.68

Finding the Fourth Proportional to 52,686.21, 79,012.88 and 17,617.68

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Solution

The fourth proportional to 52,686.21, 79,012.88 and 17,617.68 is: 26,421.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,686.21 : 79,012.88 = 17,617.68 : x
  2. Step 2: Convert to fraction form
    52,686.21/79,012.88 = 17,617.68/x
  3. Step 3: Cross multiply
    52,686.21x = 79,012.88 × 17,617.68
  4. Step 4: Simplify right side
    52,686.21x = 1,392,023,547.63
  5. Step 5: Solve for x
    x = 1,392,023,547.63/52,686.21
  6. Step 6: Final answer
    x = 26,421.02

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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.