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Finding the Fourth Proportional to 55,807.60, 83,711.40 and 33,689.20

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Solution

The fourth proportional to 55,807.60, 83,711.40 and 33,689.20 is: 50,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,807.60 : 83,711.40 = 33,689.20 : x
  2. Step 2: Convert to fraction form
    55,807.60/83,711.40 = 33,689.20/x
  3. Step 3: Cross multiply
    55,807.60x = 83,711.40 × 33,689.20
  4. Step 4: Simplify right side
    55,807.60x = 2,820,170,096.88
  5. Step 5: Solve for x
    x = 2,820,170,096.88/55,807.60
  6. Step 6: Final answer
    x = 50,533.80

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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.