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Finding the Fourth Proportional to 75,230.40, 112,845.60 and 65,607.60

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Solution

The fourth proportional to 75,230.40, 112,845.60 and 65,607.60 is: 98,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,230.40 : 112,845.60 = 65,607.60 : x
  2. Step 2: Convert to fraction form
    75,230.40/112,845.60 = 65,607.60/x
  3. Step 3: Cross multiply
    75,230.40x = 112,845.60 × 65,607.60
  4. Step 4: Simplify right side
    75,230.40x = 7,403,528,986.56
  5. Step 5: Solve for x
    x = 7,403,528,986.56/75,230.40
  6. Step 6: Final answer
    x = 98,411.40

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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.