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Finding the Fourth Proportional to 75,445.60, 113,387.10 and 65,822.80

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Solution

The fourth proportional to 75,445.60, 113,387.10 and 65,822.80 is: 98,925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,445.60 : 113,387.10 = 65,822.80 : x
  2. Step 2: Convert to fraction form
    75,445.60/113,387.10 = 65,822.80/x
  3. Step 3: Cross multiply
    75,445.60x = 113,387.10 × 65,822.80
  4. Step 4: Simplify right side
    75,445.60x = 7,463,456,405.88
  5. Step 5: Solve for x
    x = 7,463,456,405.88/75,445.60
  6. Step 6: Final answer
    x = 98,925.01

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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.