Home / 61,386.46-84,684.68-39,874.74

Finding the Fourth Proportional to 61,386.46, 84,684.68 and 39,874.74

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Solution

The fourth proportional to 61,386.46, 84,684.68 and 39,874.74 is: 55,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,386.46 : 84,684.68 = 39,874.74 : x
  2. Step 2: Convert to fraction form
    61,386.46/84,684.68 = 39,874.74/x
  3. Step 3: Cross multiply
    61,386.46x = 84,684.68 × 39,874.74
  4. Step 4: Simplify right side
    61,386.46x = 3,376,779,596.98
  5. Step 5: Solve for x
    x = 3,376,779,596.98/61,386.46
  6. Step 6: Final answer
    x = 55,008.54

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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.