Home / 74,928.30-112,064.40-57,213.60

Finding the Fourth Proportional to 74,928.30, 112,064.40 and 57,213.60

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Solution

The fourth proportional to 74,928.30, 112,064.40 and 57,213.60 is: 85,569.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,928.30 : 112,064.40 = 57,213.60 : x
  2. Step 2: Convert to fraction form
    74,928.30/112,064.40 = 57,213.60/x
  3. Step 3: Cross multiply
    74,928.30x = 112,064.40 × 57,213.60
  4. Step 4: Simplify right side
    74,928.30x = 6,411,607,755.84
  5. Step 5: Solve for x
    x = 6,411,607,755.84/74,928.30
  6. Step 6: Final answer
    x = 85,569.91

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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.