Home / 42,082.20-63,113.58-12,492.90

Finding the Fourth Proportional to 42,082.20, 63,113.58 and 12,492.90

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Solution

The fourth proportional to 42,082.20, 63,113.58 and 12,492.90 is: 18,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,082.20 : 63,113.58 = 12,492.90 : x
  2. Step 2: Convert to fraction form
    42,082.20/63,113.58 = 12,492.90/x
  3. Step 3: Cross multiply
    42,082.20x = 63,113.58 × 12,492.90
  4. Step 4: Simplify right side
    42,082.20x = 788,471,643.58
  5. Step 5: Solve for x
    x = 788,471,643.58/42,082.20
  6. Step 6: Final answer
    x = 18,736.46

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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.