Home / 80,461.11-120,689.63-38,370.95

Finding the Fourth Proportional to 80,461.11, 120,689.63 and 38,370.95

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Solution

The fourth proportional to 80,461.11, 120,689.63 and 38,370.95 is: 57,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,461.11 : 120,689.63 = 38,370.95 : x
  2. Step 2: Convert to fraction form
    80,461.11/120,689.63 = 38,370.95/x
  3. Step 3: Cross multiply
    80,461.11x = 120,689.63 × 38,370.95
  4. Step 4: Simplify right side
    80,461.11x = 4,630,974,962.95
  5. Step 5: Solve for x
    x = 4,630,974,962.95/80,461.11
  6. Step 6: Final answer
    x = 57,555.44

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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.