Home / 61,989.12-85,544.64-35,136.71

Finding the Fourth Proportional to 61,989.12, 85,544.64 and 35,136.71

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Solution

The fourth proportional to 61,989.12, 85,544.64 and 35,136.71 is: 48,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,989.12 : 85,544.64 = 35,136.71 : x
  2. Step 2: Convert to fraction form
    61,989.12/85,544.64 = 35,136.71/x
  3. Step 3: Cross multiply
    61,989.12x = 85,544.64 × 35,136.71
  4. Step 4: Simplify right side
    61,989.12x = 3,005,756,780.01
  5. Step 5: Solve for x
    x = 3,005,756,780.01/61,989.12
  6. Step 6: Final answer
    x = 48,488.46

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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.