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Finding the Fourth Proportional to 57,946.60, 81,300.20 and 57,946.60

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Solution

The fourth proportional to 57,946.60, 81,300.20 and 57,946.60 is: 81,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,946.60 : 81,300.20 = 57,946.60 : x
  2. Step 2: Convert to fraction form
    57,946.60/81,300.20 = 57,946.60/x
  3. Step 3: Cross multiply
    57,946.60x = 81,300.20 × 57,946.60
  4. Step 4: Simplify right side
    57,946.60x = 4,711,070,169.32
  5. Step 5: Solve for x
    x = 4,711,070,169.32/57,946.60
  6. Step 6: Final answer
    x = 81,300.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.