Home / 42,071.92-63,114.16-12,486.26

Finding the Fourth Proportional to 42,071.92, 63,114.16 and 12,486.26

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Solution

The fourth proportional to 42,071.92, 63,114.16 and 12,486.26 is: 18,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,071.92 : 63,114.16 = 12,486.26 : x
  2. Step 2: Convert to fraction form
    42,071.92/63,114.16 = 12,486.26/x
  3. Step 3: Cross multiply
    42,071.92x = 63,114.16 × 12,486.26
  4. Step 4: Simplify right side
    42,071.92x = 788,059,811.44
  5. Step 5: Solve for x
    x = 788,059,811.44/42,071.92
  6. Step 6: Final answer
    x = 18,731.25

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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.