Home / 42,460.30-63,630.09-31,279.06

Finding the Fourth Proportional to 42,460.30, 63,630.09 and 31,279.06

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Solution

The fourth proportional to 42,460.30, 63,630.09 and 31,279.06 is: 46,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,460.30 : 63,630.09 = 31,279.06 : x
  2. Step 2: Convert to fraction form
    42,460.30/63,630.09 = 31,279.06/x
  3. Step 3: Cross multiply
    42,460.30x = 63,630.09 × 31,279.06
  4. Step 4: Simplify right side
    42,460.30x = 1,990,289,402.92
  5. Step 5: Solve for x
    x = 1,990,289,402.92/42,460.30
  6. Step 6: Final answer
    x = 46,874.12

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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.