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Finding the Fourth Proportional to 79,758.40, 119,637.60 and 42,433.60

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Solution

The fourth proportional to 79,758.40, 119,637.60 and 42,433.60 is: 63,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,758.40 : 119,637.60 = 42,433.60 : x
  2. Step 2: Convert to fraction form
    79,758.40/119,637.60 = 42,433.60/x
  3. Step 3: Cross multiply
    79,758.40x = 119,637.60 × 42,433.60
  4. Step 4: Simplify right side
    79,758.40x = 5,076,654,063.36
  5. Step 5: Solve for x
    x = 5,076,654,063.36/79,758.40
  6. Step 6: Final answer
    x = 63,650.40

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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.