Home / 51,390.60-77,037.30-30,346.80

Finding the Fourth Proportional to 51,390.60, 77,037.30 and 30,346.80

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Solution

The fourth proportional to 51,390.60, 77,037.30 and 30,346.80 is: 45,491.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,390.60 : 77,037.30 = 30,346.80 : x
  2. Step 2: Convert to fraction form
    51,390.60/77,037.30 = 30,346.80/x
  3. Step 3: Cross multiply
    51,390.60x = 77,037.30 × 30,346.80
  4. Step 4: Simplify right side
    51,390.60x = 2,337,835,535.64
  5. Step 5: Solve for x
    x = 2,337,835,535.64/51,390.60
  6. Step 6: Final answer
    x = 45,491.50

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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.