Home / 74,679.34-112,017.58-18,519.61

Finding the Fourth Proportional to 74,679.34, 112,017.58 and 18,519.61

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Solution

The fourth proportional to 74,679.34, 112,017.58 and 18,519.61 is: 27,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.34 : 112,017.58 = 18,519.61 : x
  2. Step 2: Convert to fraction form
    74,679.34/112,017.58 = 18,519.61/x
  3. Step 3: Cross multiply
    74,679.34x = 112,017.58 × 18,519.61
  4. Step 4: Simplify right side
    74,679.34x = 2,074,521,894.74
  5. Step 5: Solve for x
    x = 2,074,521,894.74/74,679.34
  6. Step 6: Final answer
    x = 27,779.06

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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.