Home / 61,779.09-85,254.21-34,920.65

Finding the Fourth Proportional to 61,779.09, 85,254.21 and 34,920.65

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Solution

The fourth proportional to 61,779.09, 85,254.21 and 34,920.65 is: 48,189.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,779.09 : 85,254.21 = 34,920.65 : x
  2. Step 2: Convert to fraction form
    61,779.09/85,254.21 = 34,920.65/x
  3. Step 3: Cross multiply
    61,779.09x = 85,254.21 × 34,920.65
  4. Step 4: Simplify right side
    61,779.09x = 2,977,132,428.44
  5. Step 5: Solve for x
    x = 2,977,132,428.44/61,779.09
  6. Step 6: Final answer
    x = 48,189.97

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1.5x scale

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.