Home / 51,807.60-77,711.40-33,145.20

Finding the Fourth Proportional to 51,807.60, 77,711.40 and 33,145.20

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Solution

The fourth proportional to 51,807.60, 77,711.40 and 33,145.20 is: 49,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,807.60 : 77,711.40 = 33,145.20 : x
  2. Step 2: Convert to fraction form
    51,807.60/77,711.40 = 33,145.20/x
  3. Step 3: Cross multiply
    51,807.60x = 77,711.40 × 33,145.20
  4. Step 4: Simplify right side
    51,807.60x = 2,575,759,895.28
  5. Step 5: Solve for x
    x = 2,575,759,895.28/51,807.60
  6. Step 6: Final answer
    x = 49,717.80

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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.