Home / 56,215.13-77,445.15-39,188.44

Finding the Fourth Proportional to 56,215.13, 77,445.15 and 39,188.44

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Solution

The fourth proportional to 56,215.13, 77,445.15 and 39,188.44 is: 53,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,215.13 : 77,445.15 = 39,188.44 : x
  2. Step 2: Convert to fraction form
    56,215.13/77,445.15 = 39,188.44/x
  3. Step 3: Cross multiply
    56,215.13x = 77,445.15 × 39,188.44
  4. Step 4: Simplify right side
    56,215.13x = 3,034,954,226.84
  5. Step 5: Solve for x
    x = 3,034,954,226.84/56,215.13
  6. Step 6: Final answer
    x = 53,988.21

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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.