Home / 56,147.15-77,479.74-30,648.44

Finding the Fourth Proportional to 56,147.15, 77,479.74 and 30,648.44

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Solution

The fourth proportional to 56,147.15, 77,479.74 and 30,648.44 is: 42,293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,147.15 : 77,479.74 = 30,648.44 : x
  2. Step 2: Convert to fraction form
    56,147.15/77,479.74 = 30,648.44/x
  3. Step 3: Cross multiply
    56,147.15x = 77,479.74 × 30,648.44
  4. Step 4: Simplify right side
    56,147.15x = 2,374,632,775.21
  5. Step 5: Solve for x
    x = 2,374,632,775.21/56,147.15
  6. Step 6: Final answer
    x = 42,293.03

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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.