Home / 74,915.53-112,377.61-28,168.81

Finding the Fourth Proportional to 74,915.53, 112,377.61 and 28,168.81

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Solution

The fourth proportional to 74,915.53, 112,377.61 and 28,168.81 is: 42,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,915.53 : 112,377.61 = 28,168.81 : x
  2. Step 2: Convert to fraction form
    74,915.53/112,377.61 = 28,168.81/x
  3. Step 3: Cross multiply
    74,915.53x = 112,377.61 × 28,168.81
  4. Step 4: Simplify right side
    74,915.53x = 3,165,543,298.61
  5. Step 5: Solve for x
    x = 3,165,543,298.61/74,915.53
  6. Step 6: Final answer
    x = 42,254.84

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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.