Home / 67,215.20-92,751.48-38,922.72

Finding the Fourth Proportional to 67,215.20, 92,751.48 and 38,922.72

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Solution

The fourth proportional to 67,215.20, 92,751.48 and 38,922.72 is: 53,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,215.20 : 92,751.48 = 38,922.72 : x
  2. Step 2: Convert to fraction form
    67,215.20/92,751.48 = 38,922.72/x
  3. Step 3: Cross multiply
    67,215.20x = 92,751.48 × 38,922.72
  4. Step 4: Simplify right side
    67,215.20x = 3,610,139,885.63
  5. Step 5: Solve for x
    x = 3,610,139,885.63/67,215.20
  6. Step 6: Final answer
    x = 53,710.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.