Home / 52,920.08-79,372.64-17,855.12

Finding the Fourth Proportional to 52,920.08, 79,372.64 and 17,855.12

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Solution

The fourth proportional to 52,920.08, 79,372.64 and 17,855.12 is: 26,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,920.08 : 79,372.64 = 17,855.12 : x
  2. Step 2: Convert to fraction form
    52,920.08/79,372.64 = 17,855.12/x
  3. Step 3: Cross multiply
    52,920.08x = 79,372.64 × 17,855.12
  4. Step 4: Simplify right side
    52,920.08x = 1,417,208,011.92
  5. Step 5: Solve for x
    x = 1,417,208,011.92/52,920.08
  6. Step 6: Final answer
    x = 26,780.16

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1.5x scale

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.