Home / 56,775.48-78,350.92-31,624.98

Finding the Fourth Proportional to 56,775.48, 78,350.92 and 31,624.98

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Solution

The fourth proportional to 56,775.48, 78,350.92 and 31,624.98 is: 43,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,775.48 : 78,350.92 = 31,624.98 : x
  2. Step 2: Convert to fraction form
    56,775.48/78,350.92 = 31,624.98/x
  3. Step 3: Cross multiply
    56,775.48x = 78,350.92 × 31,624.98
  4. Step 4: Simplify right side
    56,775.48x = 2,477,846,277.98
  5. Step 5: Solve for x
    x = 2,477,846,277.98/56,775.48
  6. Step 6: Final answer
    x = 43,642.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.