Home / 74,869.20-112,303.56-51,424.56

Finding the Fourth Proportional to 74,869.20, 112,303.56 and 51,424.56

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Solution

The fourth proportional to 74,869.20, 112,303.56 and 51,424.56 is: 77,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869.20 : 112,303.56 = 51,424.56 : x
  2. Step 2: Convert to fraction form
    74,869.20/112,303.56 = 51,424.56/x
  3. Step 3: Cross multiply
    74,869.20x = 112,303.56 × 51,424.56
  4. Step 4: Simplify right side
    74,869.20x = 5,775,161,159.43
  5. Step 5: Solve for x
    x = 5,775,161,159.43/74,869.20
  6. Step 6: Final answer
    x = 77,136.68

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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.