Home / 61,784.12-85,271.20-39,125.18

Finding the Fourth Proportional to 61,784.12, 85,271.20 and 39,125.18

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Solution

The fourth proportional to 61,784.12, 85,271.20 and 39,125.18 is: 53,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,784.12 : 85,271.20 = 39,125.18 : x
  2. Step 2: Convert to fraction form
    61,784.12/85,271.20 = 39,125.18/x
  3. Step 3: Cross multiply
    61,784.12x = 85,271.20 × 39,125.18
  4. Step 4: Simplify right side
    61,784.12x = 3,336,251,164.18
  5. Step 5: Solve for x
    x = 3,336,251,164.18/61,784.12
  6. Step 6: Final answer
    x = 53,998.52

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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.