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Finding the Fourth Proportional to 88,431.60, 122,031.60 and 48,144.36

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Solution

The fourth proportional to 88,431.60, 122,031.60 and 48,144.36 is: 66,437.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,431.60 : 122,031.60 = 48,144.36 : x
  2. Step 2: Convert to fraction form
    88,431.60/122,031.60 = 48,144.36/x
  3. Step 3: Cross multiply
    88,431.60x = 122,031.60 × 48,144.36
  4. Step 4: Simplify right side
    88,431.60x = 5,875,133,281.78
  5. Step 5: Solve for x
    x = 5,875,133,281.78/88,431.60
  6. Step 6: Final answer
    x = 66,437.03

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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.