Home / 56,146.44-77,478.78-30,647.74

Finding the Fourth Proportional to 56,146.44, 77,478.78 and 30,647.74

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Solution

The fourth proportional to 56,146.44, 77,478.78 and 30,647.74 is: 42,292.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,146.44 : 77,478.78 = 30,647.74 : x
  2. Step 2: Convert to fraction form
    56,146.44/77,478.78 = 30,647.74/x
  3. Step 3: Cross multiply
    56,146.44x = 77,478.78 × 30,647.74
  4. Step 4: Simplify right side
    56,146.44x = 2,374,549,504.96
  5. Step 5: Solve for x
    x = 2,374,549,504.96/56,146.44
  6. Step 6: Final answer
    x = 42,292.08

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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.