Home / 67,108.65-92,610.12-38,428.74

Finding the Fourth Proportional to 67,108.65, 92,610.12 and 38,428.74

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Solution

The fourth proportional to 67,108.65, 92,610.12 and 38,428.74 is: 53,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,108.65 : 92,610.12 = 38,428.74 : x
  2. Step 2: Convert to fraction form
    67,108.65/92,610.12 = 38,428.74/x
  3. Step 3: Cross multiply
    67,108.65x = 92,610.12 × 38,428.74
  4. Step 4: Simplify right side
    67,108.65x = 3,558,890,222.85
  5. Step 5: Solve for x
    x = 3,558,890,222.85/67,108.65
  6. Step 6: Final answer
    x = 53,031.77

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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.