Home / 61,790.40-85,302.36-39,152.88

Finding the Fourth Proportional to 61,790.40, 85,302.36 and 39,152.88

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Solution

The fourth proportional to 61,790.40, 85,302.36 and 39,152.88 is: 54,051.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,790.40 : 85,302.36 = 39,152.88 : x
  2. Step 2: Convert to fraction form
    61,790.40/85,302.36 = 39,152.88/x
  3. Step 3: Cross multiply
    61,790.40x = 85,302.36 × 39,152.88
  4. Step 4: Simplify right side
    61,790.40x = 3,339,833,064.80
  5. Step 5: Solve for x
    x = 3,339,833,064.80/61,790.40
  6. Step 6: Final answer
    x = 54,051.00

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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.