Home / 51,782.40-77,559.78-42,795.90

Finding the Fourth Proportional to 51,782.40, 77,559.78 and 42,795.90

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Solution

The fourth proportional to 51,782.40, 77,559.78 and 42,795.90 is: 64,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,782.40 : 77,559.78 = 42,795.90 : x
  2. Step 2: Convert to fraction form
    51,782.40/77,559.78 = 42,795.90/x
  3. Step 3: Cross multiply
    51,782.40x = 77,559.78 × 42,795.90
  4. Step 4: Simplify right side
    51,782.40x = 3,319,240,588.90
  5. Step 5: Solve for x
    x = 3,319,240,588.90/51,782.40
  6. Step 6: Final answer
    x = 64,099.78

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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.