Home / 74,985.42-112,506.21-38,939.41

Finding the Fourth Proportional to 74,985.42, 112,506.21 and 38,939.41

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Solution

The fourth proportional to 74,985.42, 112,506.21 and 38,939.41 is: 58,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985.42 : 112,506.21 = 38,939.41 : x
  2. Step 2: Convert to fraction form
    74,985.42/112,506.21 = 38,939.41/x
  3. Step 3: Cross multiply
    74,985.42x = 112,506.21 × 38,939.41
  4. Step 4: Simplify right side
    74,985.42x = 4,380,925,157.47
  5. Step 5: Solve for x
    x = 4,380,925,157.47/74,985.42
  6. Step 6: Final answer
    x = 58,423.69

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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.