Home / 92,037.12-138,032.88-39,440.64

Finding the Fourth Proportional to 92,037.12, 138,032.88 and 39,440.64

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Solution

The fourth proportional to 92,037.12, 138,032.88 and 39,440.64 is: 59,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,037.12 : 138,032.88 = 39,440.64 : x
  2. Step 2: Convert to fraction form
    92,037.12/138,032.88 = 39,440.64/x
  3. Step 3: Cross multiply
    92,037.12x = 138,032.88 × 39,440.64
  4. Step 4: Simplify right side
    92,037.12x = 5,444,105,128.24
  5. Step 5: Solve for x
    x = 5,444,105,128.24/92,037.12
  6. Step 6: Final answer
    x = 59,151.19

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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.