Home / 61,678.21-85,117.50-37,818.04

Finding the Fourth Proportional to 61,678.21, 85,117.50 and 37,818.04

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Solution

The fourth proportional to 61,678.21, 85,117.50 and 37,818.04 is: 52,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.21 : 85,117.50 = 37,818.04 : x
  2. Step 2: Convert to fraction form
    61,678.21/85,117.50 = 37,818.04/x
  3. Step 3: Cross multiply
    61,678.21x = 85,117.50 × 37,818.04
  4. Step 4: Simplify right side
    61,678.21x = 3,218,977,019.70
  5. Step 5: Solve for x
    x = 3,218,977,019.70/61,678.21
  6. Step 6: Final answer
    x = 52,189.86

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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.