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Finding the Fourth Proportional to 56,412.44, 77,846.08 and 30,914.20

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Solution

The fourth proportional to 56,412.44, 77,846.08 and 30,914.20 is: 42,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,412.44 : 77,846.08 = 30,914.20 : x
  2. Step 2: Convert to fraction form
    56,412.44/77,846.08 = 30,914.20/x
  3. Step 3: Cross multiply
    56,412.44x = 77,846.08 × 30,914.20
  4. Step 4: Simplify right side
    56,412.44x = 2,406,549,286.34
  5. Step 5: Solve for x
    x = 2,406,549,286.34/56,412.44
  6. Step 6: Final answer
    x = 42,659.90

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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.