Home / 64,140.89-88,539.09-57,414.65

Finding the Fourth Proportional to 64,140.89, 88,539.09 and 57,414.65

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Solution

The fourth proportional to 64,140.89, 88,539.09 and 57,414.65 is: 79,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,140.89 : 88,539.09 = 57,414.65 : x
  2. Step 2: Convert to fraction form
    64,140.89/88,539.09 = 57,414.65/x
  3. Step 3: Cross multiply
    64,140.89x = 88,539.09 × 57,414.65
  4. Step 4: Simplify right side
    64,140.89x = 5,083,440,863.67
  5. Step 5: Solve for x
    x = 5,083,440,863.67/64,140.89
  6. Step 6: Final answer
    x = 79,254.29

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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.