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Finding the Fourth Proportional to 79,216.40, 118,813.80 and 23,812.40

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Solution

The fourth proportional to 79,216.40, 118,813.80 and 23,812.40 is: 35,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,216.40 : 118,813.80 = 23,812.40 : x
  2. Step 2: Convert to fraction form
    79,216.40/118,813.80 = 23,812.40/x
  3. Step 3: Cross multiply
    79,216.40x = 118,813.80 × 23,812.40
  4. Step 4: Simplify right side
    79,216.40x = 2,829,241,731.12
  5. Step 5: Solve for x
    x = 2,829,241,731.12/79,216.40
  6. Step 6: Final answer
    x = 35,715.35

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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.