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Finding the Fourth Proportional to 79,875.60, 119,813.40 and 27,277.20

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Solution

The fourth proportional to 79,875.60, 119,813.40 and 27,277.20 is: 40,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,875.60 : 119,813.40 = 27,277.20 : x
  2. Step 2: Convert to fraction form
    79,875.60/119,813.40 = 27,277.20/x
  3. Step 3: Cross multiply
    79,875.60x = 119,813.40 × 27,277.20
  4. Step 4: Simplify right side
    79,875.60x = 3,268,174,074.48
  5. Step 5: Solve for x
    x = 3,268,174,074.48/79,875.60
  6. Step 6: Final answer
    x = 40,915.80

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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.